diff --git a/docs/assets/img/product_pics/units/esp32cam.jpg b/docs/assets/img/product_pics/units/esp32cam.jpg
new file mode 100644
index 00000000..55bc6368
Binary files /dev/null and b/docs/assets/img/product_pics/units/esp32cam.jpg differ
diff --git a/docs/coverpage.md b/docs/coverpage.md
index e2558746..dfe75f5f 100644
--- a/docs/coverpage.md
+++ b/docs/coverpage.md
@@ -8,4 +8,4 @@
 
 [Official Website](http://www.m5stack.com)
 [Introdction](#main)
-[Quick Start](quick_start)
+[Quick Start](/en/quick_start)
diff --git a/docs/en/api_reference/api_lcd.md b/docs/en/api_reference/api_lcd.md
index dfccb863..61c77c4e 100644
--- a/docs/en/api_reference/api_lcd.md
+++ b/docs/en/api_reference/api_lcd.md
@@ -62,12 +62,9 @@ defined in the platform and calls the undo method on any actions.
 ### cleanPlatform
 > StyleDictionary.cleanPlatform(platform) ⇒ [<code>style-dictionary</code>](#module_style-dictionary)
 
-
-
-
 Takes a platform and performs all transforms to
 the properties object (non-mutative) then
-cleans all the files and perfoms the undo method of any [actions](actions.md).
+cleans all the files and perfoms the undo method of any [actions](actions).
 
 
 | Param | Type |
@@ -80,9 +77,6 @@ cleans all the files and perfoms the undo method of any [actions](actions.md).
 ### exportPlatform
 > StyleDictionary.exportPlatform(platform) ⇒ <code>Object</code>
 
-
-
-
 Exports a properties object with applied
 platform transforms.
 
@@ -101,8 +95,6 @@ dictionary in JS build tools like webpack.
 > StyleDictionary.extend(config) ⇒ [<code>style-dictionary</code>](#module_style-dictionary)
 
 
-
-
 Create a Style Dictionary
 
 
diff --git a/docs/en/product_documents.md b/docs/en/product_documents.md
index cb6fea15..b3bd4a4c 100644
--- a/docs/en/product_documents.md
+++ b/docs/en/product_documents.md
@@ -1,6 +1,6 @@
 # Product Documents
 
-[中文](zh_CN/product_documents.md) | English | [日本語](ja/product_documents.md)
+[中文](zh_CN/product_documents) | English | [日本語](ja/product_documents)
 
 ## Cores
 
@@ -8,9 +8,9 @@
 
 | M5Core        | MiniCore      |
 | :----------:  |:------------: |
-| [BASIC](en/product_documents/m5stack-core/m5core_basic)         | [Stick](en/product_documents/m5stack-core/minicore_stick)         |
-| [GRAY](en/product_documents/m5stack-core/m5core_gray)          | /            |
-| [FIRE](en/product_documents/m5stack-core/m5core_fire)          | /            |
+| [BASIC](/en/product_documents/m5stack-core/m5core_basic)         | [Stick](/en/product_documents/m5stack-core/minicore_stick)         |
+| [GRAY](/en/product_documents/m5stack-core/m5core_gray)          | /            |
+| [FIRE](/en/product_documents/m5stack-core/m5core_fire)          | /            |
 
 ## Modules
 
@@ -18,10 +18,10 @@
 
 | Wireless Modules      | Accessory Modules  | Controlling Modules   |
 | :------------------:  |:------------------:| :--------------------:|
-| [GPS](en/product_documents/modules/module_gps) | [PROTO](en/product_documents/modules/module_proto) | [STEPMOTOR](en/product_documents/modules/module_stepmotor)|
-| [LORA](en/product_documents/modules/module_lora)                  | [BATTERY](en/product_documents/modules/module_battery)            | /                     |
-| [LAN](en/product_documents/modules/module_lan)                   | [BTC](en/product_documents/modules/module_btc)                | /                    |
-| [SIM800/GPRS/GSM](en/product_documents/modules/module_sim800)       | [PLUS](en/product_documents/modules/module_plus)                  | /                    |
+| [GPS](/en/product_documents/modules/module_gps) | [PROTO](/en/product_documents/modules/module_proto) | [STEPMOTOR](/en/product_documents/modules/module_stepmotor)|
+| [LORA](/en/product_documents/modules/module_lora)                  | [BATTERY](/en/product_documents/modules/module_battery)            | /                     |
+| [LAN](/en/product_documents/modules/module_lan)                   | [BTC](/en/product_documents/modules/module_btc)                | /                    |
+| [SIM800/GPRS/GSM](/en/product_documents/modules/module_sim800)       | [PLUS](/en/product_documents/modules/module_plus)                  | /                    |
 | /                     | /                  | /                     |
 | /                     | /                  | /                     |
 | /                     | /                  | /                     |
@@ -32,18 +32,18 @@
 
 <img src='assets/img/product_pics/5.jpg'> <img src='assets/img/product_pics/bases.png'>
 
-- [M5GO-Base](en/product_documents/bases/cables/m5go_base)
-- [PLC-Base](en/product_documents/modules/module_plc)
-- [FACE-Base](en/product_documents/modules/module_face)
-- [LAN](en/product_documents/bases/lan_base)
-- [Node-Base](en/product_documents/bases/node_base)
+- [M5GO-Base](/en/product_documents/bases/cables/m5go_base)
+- [PLC-Base](/en/product_documents/modules/module_plc)
+- [FACE-Base](/en/product_documents/modules/module_face)
+- [LAN](/en/product_documents/bases/lan_base)
+- [Node-Base](/en/product_documents/bases/node_base)
 
 ## Accessories
 
 <img src='assets/img/product_pics/5.jpg'> <img src='assets/img/product_pics/accessory.png'>
 
-- [LEGO-CABLE](en/product_documents/accessorries/cables/accessory_lego_cable)
-- [FRAME](en/product_documents/accessorries/accessory_frame)
+- [LEGO-CABLE](/en/product_documents/accessorries/cables/accessory_lego_cable)
+- [FRAME](/en/product_documents/accessorries/accessory_frame)
 
 ## Units
 
@@ -51,32 +51,32 @@
 
 | Input/Sensing Class   | Output/Controlling Class  | Interface Class   |
 | :-------------------: |:------------------------: | :----------------:|
-| [ENV](en/product_documents/units/unit_env)                   | [RGB](en/product_documents/units/unit_rgb)                       | [HUB](en/product_documents/units/unit_hub)               |
-| [IR](en/product_documents/units/unit_ir)                    | [RELAY](en/product_documents/units/unit_relay)                         | [3.96PORT](en/product_documents/units/unit_396port)          |
-| [PIR](en/product_documents/units/unit_pir)                   | [NeoPixel](en/product_documents/units/unit_neopixel)                         | /                 |
-| [ANGLE](en/product_documents/units/unit_angle)                   | /                         | /                  |
-| [EARTH/Moisture](en/product_documents/units/unit_moisture)        | /                         | /                 |
-| [LIGHT](en/product_documents/units/unit_light)                 | /                         | /                 |
-| [MAKEY](en/product_documents/units/unit_makey)                   | /                         | /                 |
-| [BUTTON](en/product_documents/units/unit_button)                   | /                         | /                 |
-| [Dual-BUTTON](en/product_documents/units/unit_dual_button)                   | /                         | /                 |
-| [JOYSTICK](en/product_documents/units/unit_joystick)                   | /                         | /                 |
-| [THERMAL](en/product_documents/units/unit_thermal)                   | /                         | /                 |
-| [ADC](en/product_documents/units/unit_ADC)                   | /                         | /                 |
-| [DAC](en/product_documents/units/unit_DAC)                   | /                         | /                 |
-| [Color Sensor](en/product_documents/units/unit_color_sensor)                   | /                         | /                 |
-| [ToF](en/product_documents/units/unit_tof)                   | /                         | /                 |
-| [ESP32Cam](en/product_documents/units/unit_esp32cam)                   | /                         | /                 |
-| [M5Camera](en/product_documents/units/unit_m5camera)                   | /                         | /                 |
+| [ENV](/en/product_documents/units/unit_env)                   | [RGB](/en/product_documents/units/unit_rgb)                       | [HUB](/en/product_documents/units/unit_hub)               |
+| [IR](/en/product_documents/units/unit_ir)                    | [RELAY](/en/product_documents/units/unit_relay)                         | [3.96PORT](/en/product_documents/units/unit_396port)          |
+| [PIR](/en/product_documents/units/unit_pir)                   | [NeoPixel](/en/product_documents/units/unit_neopixel)                         | /                 |
+| [ANGLE](/en/product_documents/units/unit_angle)                   | /                         | /                  |
+| [EARTH/Moisture](/en/product_documents/units/unit_moisture)        | /                         | /                 |
+| [LIGHT](/en/product_documents/units/unit_light)                 | /                         | /                 |
+| [MAKEY](/en/product_documents/units/unit_makey)                   | /                         | /                 |
+| [BUTTON](/en/product_documents/units/unit_button)                   | /                         | /                 |
+| [Dual-BUTTON](/en/product_documents/units/unit_dual_button)                   | /                         | /                 |
+| [JOYSTICK](/en/product_documents/units/unit_joystick)                   | /                         | /                 |
+| [THERMAL](/en/product_documents/units/unit_thermal)                   | /                         | /                 |
+| [ADC](/en/product_documents/units/unit_ADC)                   | /                         | /                 |
+| [DAC](/en/product_documents/units/unit_DAC)                   | /                         | /                 |
+| [Color Sensor](/en/product_documents/units/unit_color_sensor)                   | /                         | /                 |
+| [ToF](/en/product_documents/units/unit_tof)                   | /                         | /                 |
+| [ESP32Cam](/en/product_documents/units/unit_esp32cam)                   | /                         | /                 |
+| [M5Camera](/en/product_documents/units/unit_m5camera)                   | /                         | /                 |
 
 ## Applications
 
 <img src='assets/img/product_pics/4.jpg'> <img src='assets/img/product_pics/application.png'>
 
-- [BALA](en/product_documents/applications/application_bala)
+- [BALA](/en/product_documents/applications/application_bala)
 
 ## Tools
 
 <img src='assets/img/product_pics/6.jpg'> <img src='assets/img/product_pics/tool.png'>
 
-- [M5Stack USB Downloader](en/product_documents/tools/tool_usb_downloader)
+- [M5Stack USB Downloader](/en/product_documents/tools/tool_usb_downloader)
diff --git a/docs/en/product_documents/m5stack-core/m5core_basic.md b/docs/en/product_documents/m5stack-core/m5core_basic.md
index e8e94326..8c1b3745 100644
--- a/docs/en/product_documents/m5stack-core/m5core_basic.md
+++ b/docs/en/product_documents/m5stack-core/m5core_basic.md
@@ -51,4 +51,4 @@ and so on.
 
 -  **GitHub** - [Arduino GitHub](https://github.com/m5stack/M5Stack)
 
--  **<mark>Quick Start</mark>** - Arduino - [MacOS](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) - [Windows_64](en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows) - [MicroPython](en/quick_start/m5core/m5stack_core_get_started_MicroPython)
+-  **<mark>Quick Start</mark>** - Arduino - [MacOS](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) - [Windows_64](/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows) - [MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
diff --git a/docs/en/product_documents/m5stack-core/m5core_fire.md b/docs/en/product_documents/m5stack-core/m5core_fire.md
index 2d438877..a2e2e551 100644
--- a/docs/en/product_documents/m5stack-core/m5core_fire.md
+++ b/docs/en/product_documents/m5stack-core/m5core_fire.md
@@ -58,7 +58,7 @@ and so on.
 
 - **[Purchase](https://www.aliexpress.com/store/product/M5Stack-NEW-PSRAM-2-0-FIRE-IoT-Kit-Dual-Core-ESP32-16M-FLash-4M-PSRAM-Development/3226069_32847906756.html?spm=2114.12010615.8148356.10.1c93724d7cJ5rG.html)**
 
--  **<mark>Quick Start</mark>** - Arduino - [MacOS](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) - [Windows_64](en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows) - [MicroPython](en/quick_start/m5core/m5stack_core_get_started_MicroPython)
+-  **<mark>Quick Start</mark>** - Arduino - [MacOS](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) - [Windows_64](/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows) - [MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
 
 ## READ MORE
 
diff --git a/docs/en/product_documents/m5stack-core/m5core_gray.md b/docs/en/product_documents/m5stack-core/m5core_gray.md
index c184b164..a9aeacad 100644
--- a/docs/en/product_documents/m5stack-core/m5core_gray.md
+++ b/docs/en/product_documents/m5stack-core/m5core_gray.md
@@ -55,4 +55,4 @@ Motion" via M5Stack GRAY in a day in stead of couple weeks and so on.
 
 - **[Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-In-Stock-ESP32-Mpu9250-9Axies-Motion-Sensor-Core-Development-Kit-Extensible-IoT-Development-Board/3226069_32836393710.html?spm=2114.12010615.8148356.12.25e96be7zRik8r.html)**
 
--  **<mark>Quick Start</mark>** - Arduino - [MacOS](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) - [Windows_64](en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows) - [MicroPython](en/quick_start/m5core/m5stack_core_get_started_MicroPython)
\ No newline at end of file
+-  **<mark>Quick Start</mark>** - Arduino - [MacOS](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) - [Windows_64](/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows) - [MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
\ No newline at end of file
diff --git a/docs/en/product_documents/tools/tool_usb_downloader.md b/docs/en/product_documents/tools/tool_usb_downloader.md
index 2f9ac5a4..4be27415 100644
--- a/docs/en/product_documents/tools/tool_usb_downloader.md
+++ b/docs/en/product_documents/tools/tool_usb_downloader.md
@@ -27,7 +27,7 @@ There are two reserved pins(RTS, DTR) on M5Stack USB Downloader for other applic
 ## DOCUMENTS
 
 - [Schematic](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/USBtool.pdf)
-- [UserGuide](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/M5Stack-USB-Downloader-UserGuide.md)
+- [UserGuide](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/M5Stack-USB-Downloader-UserGuide)
 
 <!-- <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_moisture.jpg" height="50" width="49">
diff --git a/docs/en/product_documents/units/unit_esp32cam.md b/docs/en/product_documents/units/unit_esp32cam.md
index 98a01c71..abf271a7 100644
--- a/docs/en/product_documents/units/unit_esp32cam.md
+++ b/docs/en/product_documents/units/unit_esp32cam.md
@@ -48,5 +48,6 @@ The ESP32Cam equips the ESP32 with everything necessary to program, run and deve
 - **[Github](https://github.com/m5stack/esp32-cam-demo/tree/m5cam) (ESP32)**
 - **[Datasheet](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) (ESP32)**
 - **[Datasheet](https://www.uctronics.com/download/cam_module/OV2640DS.pdf) (OV2640)**
-- **[Quick Start](en/quick_start/m5camera/m5camera_quick_start)**
+- **[Quick Start](/en/quick_start/m5camera/m5camera_quick_start)**
 - **[Read more](https://github.com/1zlab/1ZLAB_ESP32_Wifi_Camera)**
+- [ESP32Cam purchase (AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-ESP32-Camera-Module-Development-Board-OV2640-Camera-Type-C-Grove-Port-3D-Wifi-Antenna/3226069_32881414545.html)
diff --git a/docs/en/product_documents/units/unit_m5camera.md b/docs/en/product_documents/units/unit_m5camera.md
index 37f9b0a4..93510840 100644
--- a/docs/en/product_documents/units/unit_m5camera.md
+++ b/docs/en/product_documents/units/unit_m5camera.md
@@ -48,7 +48,7 @@ The M5Camera equips the ESP32 with everything necessary to program, run and deve
 - **[Github](https://github.com/m5stack/esp32-cam-demo/tree/m5cam-psram) (ESP32)**
 - **[Datasheet](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) (ESP32)**
 - **[Datasheet](https://www.uctronics.com/download/cam_module/OV2640DS.pdf) (OV2640)**
-- **[Quick Start](en/quick_start/m5camera/m5camera_quick_start)**
+- **[Quick Start](/en/quick_start/m5camera/m5camera_quick_start)**
 - **[Read more](https://github.com/1zlab/1ZLAB_ESP32_Wifi_Camera)**
 
 <figure>
diff --git a/docs/en/product_documents/units/unit_neopixel.md b/docs/en/product_documents/units/unit_neopixel.md
index 051f4025..09e65d5a 100644
--- a/docs/en/product_documents/units/unit_neopixel.md
+++ b/docs/en/product_documents/units/unit_neopixel.md
@@ -19,5 +19,5 @@ This is a RGB LED Cable unit. You can program it using NeoPixel Lib supported by
 -  [Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-NeoPixel-RGB-LEDs-Cable-SK6812-with-GROVE-Port-2m-1m-50cm-20cm-10cm/3226069_32950831315.html?spm=a2g1x.12024536.productList_5885013.pic_0)
 
 <figure>
-    <img src="assets/img/product_pics/units/M5GO_Unit_neopixel.png" height="300" width="300">
+    <img src="assets/img/product_pics/units/M5GO_Unit_neopixel.jpg" height="300" width="300">
 </figure>
diff --git a/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md b/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
index 5ea515e5..7239fef2 100644
--- a/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
+++ b/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
@@ -1,6 +1,6 @@
 # M5Core Quick Start(macOS, Arudino)
 
-?> **Tip** If your OS is Windows, please click [here](en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows).
+?> **Tip** If your OS is Windows, please click [here](/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows).
 
 ## CONTENT
 
@@ -14,7 +14,7 @@
 
 2. [Example](#example)
 
-!> **Note** *Before setting the development environment, we suggest you confirm whether the USB driver has installed. If not, please visit this link [establish serial connection](en/related_documents/establish_serial_connection).*
+!> **Note** *Before setting the development environment, we suggest you confirm whether the USB driver has installed. If not, please visit this link [establish serial connection](/en/related_documents/establish_serial_connection).*
 
 ## Setting Environment
 
diff --git a/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md b/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
index a7b50261..ad7be8e3 100644
--- a/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
+++ b/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
@@ -1,6 +1,6 @@
 # M5Core Quick Start(Windows, Arudino)
 
-?> **Tip** If your OS is MacOS, please click [here](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS).
+?> **Tip** If your OS is MacOS, please click [here](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS).
 
 ## CONTENT
 
@@ -14,7 +14,7 @@
 
 ?> **Tip** *If you want to upgrade the M5Stack Lib, please view this article [upgrade M5Stack Lib](www.m5stack.com).*
 
-!> **Note** *We suggest you confirm whether the `USB driver`, `Git` and `Arduino IDE(Installation path: C:\Program Files\Arduino)` has installed first. If not, please view this two articles [establish serial connection](en/related_documents/establish_serial_connection) and [Install Git and Arduino IDE](en/related_documents/how_to_install_git_and_arduino). If your arduino installation path is not `C:\Program Files\Arduino`, reinstall this IDE please with default path setting.*
+!> **Note** *We suggest you confirm whether the `USB driver`, `Git` and `Arduino IDE(Installation path: C:\Program Files\Arduino)` has installed first. If not, please view this two articles [establish serial connection](/en/related_documents/establish_serial_connection) and [Install Git and Arduino IDE](/en/related_documents/how_to_install_git_and_arduino). If your arduino installation path is not `C:\Program Files\Arduino`, reinstall this IDE please with default path setting.*
 
 ## 1. Setting Environment
 
diff --git a/docs/en/quick_start/m5core/m5stack_core_get_started_MicroPython.md b/docs/en/quick_start/m5core/m5stack_core_get_started_MicroPython.md
index 890ff986..e6fe08ea 100644
--- a/docs/en/quick_start/m5core/m5stack_core_get_started_MicroPython.md
+++ b/docs/en/quick_start/m5core/m5stack_core_get_started_MicroPython.md
@@ -1,6 +1,6 @@
 # M5Flow Quick Start(Blockly/MicroPython)
 
-!> **Note** *If it's first time to use M5Stack Core or you want to change the networkable AP that means the Core can't access [flow.m5stack.com](flow.m5stack.com), you need visit this article for setting wifi [How to connect wifi using Core](en/related_documents/how_to_connect_wifi_using_core).*
+!> **Note** *If it's first time to use M5Stack Core or you want to change the networkable AP that means the Core can't access [flow.m5stack.com](flow.m5stack.com), you need visit this article for setting wifi [How to connect wifi using Core](/en/related_documents/how_to_connect_wifi_using_core).*
 
 ### **By default, we account your M5Core has been connected with the networkable AP. And the screen shows like this figure below after you pressed the `UPLOAD` button on the left.**
 
@@ -103,4 +103,4 @@ Now, run it and enjoy your musical work!
 
 ## Complete
 
-?> **Note** *Also, For being more familiar with M5, here some simple pratices ([M5Flow Practices about Blockly](en/practice/practice_blockly) and [M5Flow Practices about Blockly](en/practice/practice_micropython)) for you or you can contact us for a [WorkShop](support@m5stack.com).*
+?> **Note** *Also, For being more familiar with M5, here some simple pratices ([M5Flow Practices about Blockly](/en/practice/practice_blockly) and [M5Flow Practices about Blockly](/en/practice/practice_micropython)) for you or you can contact us for a [WorkShop](support@m5stack.com).*
diff --git a/docs/en/quick_start/m5core/m5stack_core_quick_start.md b/docs/en/quick_start/m5core/m5stack_core_quick_start.md
index 85cfa4fb..5aa2ac62 100644
--- a/docs/en/quick_start/m5core/m5stack_core_quick_start.md
+++ b/docs/en/quick_start/m5core/m5stack_core_quick_start.md
@@ -4,4 +4,4 @@
 
 <img src="assets/img/getting_started_pics/arduino_logo.png"> | <img src="assets/img/getting_started_pics/blockly_and_micropython.png">
 ---|---
-[Arduino](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) | [Blockly/MicroPython](en/quick_start/m5core/m5stack_core_get_started_MicroPython)
+[Arduino](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) | [Blockly/MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
diff --git a/docs/en/related_documents/how_to_burn_firmware.md b/docs/en/related_documents/how_to_burn_firmware.md
index 950fc909..f68e4b7b 100644
--- a/docs/en/related_documents/how_to_burn_firmware.md
+++ b/docs/en/related_documents/how_to_burn_firmware.md
@@ -31,7 +31,7 @@ Unzip the M5Burner tool which you donwloaded for official website just now, then
     <img src="assets/img/getting_started_pics/how_to_burn_firmware/burn_firmware_02.png" alt="Screenshot of coverpage" title="Cover page">
 </figure>
 
-!> **Notice** If it does not display any ``COMx`` port or only ``COM1`` exists at the option, you need to visit this article [establish_serial_connection](related_documents/establish_serial_connection) and reinstall the USB driver.
+!> **Notice** If it does not display any ``COMx`` port or only ``COM1`` exists at the option, you need to visit this article [establish_serial_connection](/en/related_documents/establish_serial_connection) and reinstall the USB driver.
 
 **a. Choice a right firmware**
 
diff --git a/docs/en/related_documents/how_to_connect_wifi_using_core.md b/docs/en/related_documents/how_to_connect_wifi_using_core.md
index 97cf3d66..82f1a36c 100644
--- a/docs/en/related_documents/how_to_connect_wifi_using_core.md
+++ b/docs/en/related_documents/how_to_connect_wifi_using_core.md
@@ -1,6 +1,6 @@
 # How to Connect WIFI Using Core
 
-?> **Tip** *If your M5Stack Core was not burnt with a specific firmware named `M5Flow` in advance, please visit this article [How to burn firmware](en/related_documents/how_to_burn_firmware) for burnning)*
+?> **Tip** *If your M5Stack Core was not burnt with a specific firmware named `M5Flow` in advance, please visit this article [How to burn firmware](/en/related_documents/how_to_burn_firmware) for burnning)*
 
 **After powering on Core and pressing the red button on the left hand side of the M5，you will be greeted by this screen. Let's connect to networkable AP.**
 
@@ -43,7 +43,7 @@
 
 ## Complete
 
-Once you've reset M5Stack Core, pressed the upload buttom, you will arrive at a screen with a QR code. Now, you can try to program with your core following this article [Quick Start with M5Flow](quick_start/m5core/m5stack_core_get_started_MicroPython)
+Once you've reset M5Stack Core, pressed the upload buttom, you will arrive at a screen with a QR code. Now, you can try to program with your core following this article [Quick Start with M5Flow](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
 
 <figure>
     <img src="assets/img/getting_started_pics/m5stack_core/get_started_with_uiflow/apikey.jpg">
diff --git a/docs/index.md b/docs/index.md
index 801c4256..4e2b23d1 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -31,11 +31,11 @@ Our aim is "**Stackable Board is Product**". Here's the [Official Website](www.m
 
 |<img src="assets/img/introduction_pics/product-documents.jpg"> | <img src="assets/img/introduction_pics/m5-awesome.jpg"> |
 |:---:|:---:|
-|[Product Documents](en/product_documents) | [M5Stack Cases](en/m5stack_cases) |
+|[Product Documents](/en/product_documents) | [M5Stack Cases](/en/m5stack_cases) |
 
 |<img src="assets/img/introduction_pics/m5-api-reference.jpg"> | <img src="assets/img/introduction_pics/FAQ.jpg">|
 |:---:|:---:|
-|[API Rreference](en/api_reference) | [FAQ](en/faq)|
+|[API Rreference](/en/api_reference) | [FAQ](/en/faq)|
 
 
 ## Contact & Support
diff --git a/docs/ja/README.md b/docs/ja/README.md
index 90f95409..af8a87d6 100644
--- a/docs/ja/README.md
+++ b/docs/ja/README.md
@@ -5,9 +5,7 @@
 [![Tweet](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/intent/tweet?url=https%3A%2F%2Fgithub.com%2Fjhildenbiddle%2Fdocsify-themeable&hashtags=css,docsify,developers,frontend)
 <a class="github-button" href="https://github.com/watson8544/M5Stack-Documentation-docsify" data-icon="octicon-star" data-show-count="true" aria-label="Star watson8544/M5Stack-Documentation-docsify on GitHub">Star</a>
 
-**M5Stackの世界へようこそ!**
-
-?> **ヒント** アンダーラインが引かれた部分はリンクになっています。
+## **M5Stackの世界へようこそ!**
 
 <!-- <figure class="thumbnails">
     <img src="assets/img/m5stack.png" alt="Screenshot of coverpage" title="Cover page">
@@ -21,7 +19,9 @@
 
 M5Stack Coreモジュールは **ESP32** チップをベースに開発されています。
 
-私たちの目標は "**Stackable Board is Product(積んで形に)**"です。オフィシャルサイトは [こちら](www.m5stack.com)です。
+私たちの目的は、**<mark>誰もが簡単に自分のアイデアを形にできるような仕組みを作る</mark>**ことです。
+
+オフィシャルサイトは [こちら](www.m5stack.com)です。
 
 <!-- <figure class="thumbnails">
     <img src="assets/img/transport.gif" alt="Screenshot of coverpage" title="Cover page">
@@ -48,8 +48,8 @@ M5Stack Coreモジュールは **ESP32** チップをベースに開発されて
 
 - :computer: 最新情報は[公式サイト](http://www.m5stack.com)(英語)
 - :busts_in_silhouette: [フォーラム](http://forum.m5stack.com)にサインインしてM5Stackの情報交換をしよう
-- :mailbox_with_mail: 質問・疑問は[Email](mailto:tech@m5stack.com)
-- :convenience_store: 日本からの購入は[スイッチサイエンス](https://www.switch-science.com/catalog/list/770/)さんより
+- :mailbox_with_mail: 質問・疑問は[Email: tech@m5stack.com](mailto:tech@m5stack.com)まで
+- :convenience_store: 購入は[スイッチサイエンス](https://www.switch-science.com/catalog/list/770/)または[AliExpress](https://www.aliexpress.com/store/3226069)から
 
 ## ライセンス
 
diff --git a/docs/ja/faq.md b/docs/ja/faq.md
index 411c6723..c2acf7c4 100644
--- a/docs/ja/faq.md
+++ b/docs/ja/faq.md
@@ -1,5 +1,5 @@
 # M5Stack
 
-[中文](docs/README_cn.md)  | [English](docs/README.md) | 日本語
+[中文](/zh_CN/faq)  | [English](/en/faq) | 日本語
 
 ## (近日公開...)
\ No newline at end of file
diff --git a/docs/ja/product_documents.md b/docs/ja/product_documents.md
index 29635c5b..5ae94c8f 100644
--- a/docs/ja/product_documents.md
+++ b/docs/ja/product_documents.md
@@ -1,6 +1,6 @@
 # 製品ドキュメント
 
-[中文](zh_CN/product_documents.md) | [English](en/product_documents.md) | 日本語
+[中文](zh_CN/product_documents) | [English](/en/product_documents) | 日本語
 
 ## コア
 
diff --git a/docs/ja/product_documents/applications/application_bala.md b/docs/ja/product_documents/applications/application_bala.md
index 1b46dd7c..092eea77 100644
--- a/docs/ja/product_documents/applications/application_bala.md
+++ b/docs/ja/product_documents/applications/application_bala.md
@@ -75,9 +75,9 @@
 ## 関連情報
 
 - [M5BALA 購入(スイッチサイエンス)](https://www.switch-science.com/catalog/3995/)
-- [M5BALA 購入(aliexpress)](https://www.aliexpress.com/store/product/M5Satck-New-BALA-Car-ESP32-Development-Mini-Electric-Self-balancing-Car-2DC-Motor-with-Encoder-PSRAM/3226069_32904033658.html)
+- [M5BALA 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Satck-New-BALA-Car-ESP32-Development-Mini-Electric-Self-balancing-Car-2DC-Motor-with-Encoder-PSRAM/3226069_32904033658.html)
 - [M5Stack Fire 購入(スイッチサイエンス)](https://www.switch-science.com/catalog/3953/)
-- [M5Stack Fire 購入(aliexpress)](https://www.aliexpress.com/store/product/M5Stack-NEW-PSRAM-2-0-FIRE-IoT-Kit-Dual-Core-ESP32-16M-FLash-4M-PSRAM-Development/3226069_32847906756.html)
+- [M5Stack Fire 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-NEW-PSRAM-2-0-FIRE-IoT-Kit-Dual-Core-ESP32-16M-FLash-4M-PSRAM-Development/3226069_32847906756.html)
 - [MPU6050 データシート](https://store.invensense.com/datasheets/invensense/MPU-6050_DataSheet_V3%204.pdf)
 - [MPU6050 レジスタマップ](https://www.invensense.com/wp-content/uploads/2015/02/MPU-6000-Register-Map1.pdf)
 - [MAG3110 データシート](https://www.nxp.com/docs/en/data-sheet/MAG3110.pdf)
\ No newline at end of file
diff --git a/docs/ja/product_documents/bases/lan_base.md b/docs/ja/product_documents/bases/lan_base.md
index deb2b3cf..1ee04a91 100644
--- a/docs/ja/product_documents/bases/lan_base.md
+++ b/docs/ja/product_documents/bases/lan_base.md
@@ -42,4 +42,4 @@ M5Stackの無線通信が遅かったり、無線ネットワークに繋がら
 
 ## 関連情報
 
-- [M5Stack LAN ベース 購入](https://www.aliexpress.com/store/product/M5Stack-New-Arrival-LAN-Module-with-W5500-Chip-LanProto-Ethernet-convert-Network-Module-Microcontroller-for-Arduino/3226069_32904089417.html)
+- [M5Stack LAN ベース 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-New-Arrival-LAN-Module-with-W5500-Chip-LanProto-Ethernet-convert-Network-Module-Microcontroller-for-Arduino/3226069_32904089417.html)
diff --git a/docs/ja/product_documents/m5stack-core/m5core_basic.md b/docs/ja/product_documents/m5stack-core/m5core_basic.md
index 8341bc2d..73f80ced 100644
--- a/docs/ja/product_documents/m5stack-core/m5core_basic.md
+++ b/docs/ja/product_documents/m5stack-core/m5core_basic.md
@@ -54,9 +54,9 @@ M5Stack BASICにはESP32プログラミングに必要なものに加えて、TF
   - [M5Stack](https://github.com/m5stack/M5Stack)
 
 - **クイックスタート (Arduino)**
-  - [macOS](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS)
-  - [Windows](en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows)
-  - [MicroPython](en/quick_start/m5core/m5stack_core_get_started_MicroPython)
+  - [macOS](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS)
+  - [Windows](/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows)
+  - [MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
 
 ## 関連情報
   
diff --git a/docs/ja/product_documents/m5stack-core/m5core_fire.md b/docs/ja/product_documents/m5stack-core/m5core_fire.md
index 24dc5647..d319876a 100644
--- a/docs/ja/product_documents/m5stack-core/m5core_fire.md
+++ b/docs/ja/product_documents/m5stack-core/m5core_fire.md
@@ -60,9 +60,9 @@ M5Stack Fireは、ESP32プログラミングに必要なものに加えて、**M
   - [M5GO](https://github.com/m5stack/M5GO)
 
 - **クイックスタート (Arduino)**
-  - [macOS](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS)
-  - [Windows](en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows)
-  - [MicroPython](en/quick_start/m5core/m5stack_core_get_started_MicroPython)
+  - [macOS](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS)
+  - [Windows](/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows)
+  - [MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
 
 <figure>
     <img src="assets/img/product_pics/core/fire/product_pic_fire.jpg">
diff --git a/docs/ja/product_documents/m5stack-core/m5core_gray.md b/docs/ja/product_documents/m5stack-core/m5core_gray.md
index d45aacd7..d538bf37 100644
--- a/docs/ja/product_documents/m5stack-core/m5core_gray.md
+++ b/docs/ja/product_documents/m5stack-core/m5core_gray.md
@@ -18,6 +18,7 @@ M5Stack GRAYはESP32プログラミングに必要なものに加えて、**MPU9
 
 |項目|詳細|
 |:---|:---|
+|Core | M5Stack GRAY |
 |ESP32| 240MHz x 2 コア, 600 DMIPS, 520K, Wi-Fi, デュアルモード Bluetooth|
 |Flash| 4M-Bytes |
 |電源入力| 5V @ 500mA|
@@ -56,9 +57,9 @@ M5Stack GRAYはESP32プログラミングに必要なものに加えて、**MPU9
   - [M5GO](https://github.com/m5stack/M5GO)
 
 - **クイックスタート (Arduino)**
-  - [macOS](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS)
-  - [Windows](en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows)
-  - [MicroPython](en/quick_start/m5core/m5stack_core_get_started_MicroPython)
+  - [macOS](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS)
+  - [Windows](/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows)
+  - [MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
 
 ## 関連情報
 
diff --git a/docs/ja/product_documents/m5stack-core/minicore_stick.md b/docs/ja/product_documents/m5stack-core/minicore_stick.md
index 4f0ad5eb..38693bb4 100644
--- a/docs/ja/product_documents/m5stack-core/minicore_stick.md
+++ b/docs/ja/product_documents/m5stack-core/minicore_stick.md
@@ -79,4 +79,4 @@ M5Stickは２種類のモデルがあります。通常版とMPU9250版です。
 
 ## 関連情報
 
-- [M5Stick 購入](https://www.aliexpress.com/store/product/M5Stack-Official-New-M5Stick-Mini-Development-Kit-ESP32-1-3-OLED-80mAh-Battery-Inside-Buzzer-IR/3226069_32947692973.html)
\ No newline at end of file
+- [M5Stick 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-New-M5Stick-Mini-Development-Kit-ESP32-1-3-OLED-80mAh-Battery-Inside-Buzzer-IR/3226069_32947692973.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/modules/module_battery.md b/docs/ja/product_documents/modules/module_battery.md
index 043a3e94..647596f7 100644
--- a/docs/ja/product_documents/modules/module_battery.md
+++ b/docs/ja/product_documents/modules/module_battery.md
@@ -21,4 +21,4 @@ M5Stack BATTERY モジュールは850mAhの大容量バッテリを内蔵して
 
 ## 関連情報
 
-- [M5Stack BATTERY モジュール 購入](https://www.aliexpress.com/store/product/M5Stack-Official-In-Stock-Battery-Module-for-Arduino-ESP32-Core-Development-Kit-Capacity-850mAh-Stackable-IoT/3226069_32839688875.html)
+- [M5Stack BATTERY モジュール 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-In-Stock-Battery-Module-for-Arduino-ESP32-Core-Development-Kit-Capacity-850mAh-Stackable-IoT/3226069_32839688875.html)
diff --git a/docs/ja/product_documents/modules/module_lora.md b/docs/ja/product_documents/modules/module_lora.md
index 431c86e2..2a0a244b 100644
--- a/docs/ja/product_documents/modules/module_lora.md
+++ b/docs/ja/product_documents/modules/module_lora.md
@@ -45,4 +45,4 @@ LoRa™は少ない消費電力で広いエリアをカバーする無線通信
 
 ## 関連情報
 
-- [M5Stack LORA モジュール 購入](https://www.aliexpress.com/store/product/M5Stack-Official-Stock-Offer-LoRa-Module-for-ESP32-DIY-Development-Kit-Wireless-433MHz-Built-in-Antenna/3226069_32839736315.html)
\ No newline at end of file
+- [M5Stack LORA モジュール 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Stock-Offer-LoRa-Module-for-ESP32-DIY-Development-Kit-Wireless-433MHz-Built-in-Antenna/3226069_32839736315.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/modules/module_node.md b/docs/ja/product_documents/modules/module_node.md
index d1ac4c2e..9120b25c 100644
--- a/docs/ja/product_documents/modules/module_node.md
+++ b/docs/ja/product_documents/modules/module_node.md
@@ -43,4 +43,4 @@ Node モジュールは12個のRGB LED(SK6812)、コーデックチップ(WM8978
 
 ## 関連情報
 
-- [Node モジュール 購入](https://www.aliexpress.com/store/product/M5Stack-New-NODE-Samrt-Speaker-WM8978-Audio-Development-Board-I2S-Module-with-DHT12-Sensor-MIC-IR/3226069_32949773234.html)
+- [Node モジュール 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-New-NODE-Samrt-Speaker-WM8978-Audio-Development-Board-I2S-Module-with-DHT12-Sensor-MIC-IR/3226069_32949773234.html)
diff --git a/docs/ja/product_documents/modules/module_plus.md b/docs/ja/product_documents/modules/module_plus.md
index e6fa5f11..e1bd7cb0 100644
--- a/docs/ja/product_documents/modules/module_plus.md
+++ b/docs/ja/product_documents/modules/module_plus.md
@@ -35,4 +35,4 @@ M5Stack PLUS モジュールは500mAhのバッテリ、ロータリエンコー
 
 ## 関連情報
 
-- [M5Stack PLUS モジュール 購入](https://www.aliexpress.com/store/product/M5Stack-New-Arrival-PLUS-Module-Encoder-Module-with-MEGA328P-500mAh-Battery-ISP-IR-Transmitter-UART-GPIO/3226069_32949278724.html)
\ No newline at end of file
+- [M5Stack PLUS モジュール 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-New-Arrival-PLUS-Module-Encoder-Module-with-MEGA328P-500mAh-Battery-ISP-IR-Transmitter-UART-GPIO/3226069_32949278724.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/modules/module_proto.md b/docs/ja/product_documents/modules/module_proto.md
index 1d040a71..21c0eda5 100644
--- a/docs/ja/product_documents/modules/module_proto.md
+++ b/docs/ja/product_documents/modules/module_proto.md
@@ -59,8 +59,8 @@ M5Stack PROTO モジュールは、各M5Stack Coreと接続可能な30ピンソ
 
 ## 関連情報
 
-- [PROTO モジュール Kit 購入](https://ja.aliexpress.com/store/product/M5Stack-Official-Experimental-Proto-Board-Set-included-DHT12-Bus-Socke-Grove-Cable-for-ESP32-Basic-Kit/3226069_32841004439.html)
+- [PROTO モジュール Kit 購入(AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-Experimental-Proto-Board-Set-included-DHT12-Bus-Socke-Grove-Cable-for-ESP32-Basic-Kit/3226069_32841004439.html)
 
-- [PROTO モジュール 購入](https://www.aliexpress.com/store/product/M5Stack-Official-Stock-Offer-Proto-Module-Proto-Board-with-Extension-Bus-Socket-for-Arduino-ESP32-Development/3226069_32843231933.html)
+- [PROTO モジュール 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Stock-Offer-Proto-Module-Proto-Board-with-Extension-Bus-Socket-for-Arduino-ESP32-Development/3226069_32843231933.html)
 
-- [PROTO ボード 購入](https://www.aliexpress.com/store/product/M5Stack-Official-Core-Development-of-Experimental-Proto-Board-suitable-for-ESP32-Basic-Kit-and-Mpu9250-Kit/3226069_32837180999.html)
+- [PROTO ボード 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Core-Development-of-Experimental-Proto-Board-suitable-for-ESP32-Basic-Kit-and-Mpu9250-Kit/3226069_32837180999.html)
diff --git a/docs/ja/product_documents/modules/module_sim800.md b/docs/ja/product_documents/modules/module_sim800.md
index b3964a4c..4db65408 100644
--- a/docs/ja/product_documents/modules/module_sim800.md
+++ b/docs/ja/product_documents/modules/module_sim800.md
@@ -43,4 +43,4 @@ SIM800LはクアッドバンドのGSM/GPRS通信ソリューションを提供
 
 ## 関連情報
 
-- [M5Stack SIM800L モジュール 購入](https://www.aliexpress.com/store/product/M5Stack-Official-In-Stock-GSM-Module-SIM800L-Stackable-IoT-Development-Board-for-Arduino-ESP32-with-MIC/3226069_32843211923.html)
+- [M5Stack SIM800L モジュール 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-In-Stock-GSM-Module-SIM800L-Stackable-IoT-Development-Board-for-Arduino-ESP32-with-MIC/3226069_32843211923.html)
diff --git a/docs/ja/product_documents/modules/module_stepmotor.md b/docs/ja/product_documents/modules/module_stepmotor.md
index df275e18..5cbd22c8 100644
--- a/docs/ja/product_documents/modules/module_stepmotor.md
+++ b/docs/ja/product_documents/modules/module_stepmotor.md
@@ -53,4 +53,4 @@ STEPMOTOR モジュールはATmega328pを内蔵しており、GRBLファーム
 
 ## 関連情報
 
-- [STEPMOTOR モジュール 購入](https://www.aliexpress.com/store/product/M5Stack-New-Arrival-Stepmotor-Module-for-Arduino-ESP32-GRBL-12C-Step-Motor-MEGA328P-similar-as-12V/3226069_32889109142.html)
\ No newline at end of file
+- [STEPMOTOR モジュール 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-New-Arrival-Stepmotor-Module-for-Arduino-ESP32-GRBL-12C-Step-Motor-MEGA328P-similar-as-12V/3226069_32889109142.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/tools/tool_usb_downloader.md b/docs/ja/product_documents/tools/tool_usb_downloader.md
index f6a7a75d..5c58647d 100644
--- a/docs/ja/product_documents/tools/tool_usb_downloader.md
+++ b/docs/ja/product_documents/tools/tool_usb_downloader.md
@@ -27,7 +27,7 @@
 - 回路図
   - [Schematic](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/USBtool.pdf)
 - ユーザガイド(英語)
-  - [UserGuide](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/M5Stack-USB-Downloader-UserGuide.md)
+  - [UserGuide](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/M5Stack-USB-Downloader-UserGuide)
 
 <!-- <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_moisture.jpg" height="50" width="49">
diff --git a/docs/ja/product_documents/units/unit_396port.md b/docs/ja/product_documents/units/unit_396port.md
index b2b24998..c6bcc607 100644
--- a/docs/ja/product_documents/units/unit_396port.md
+++ b/docs/ja/product_documents/units/unit_396port.md
@@ -17,4 +17,4 @@
 
 ## 関連情報
 
-- [3.96port ユニット 購入](https://ja.aliexpress.com/store/product/M5Stack-Official-3-96-4Pin-Transfer-Module-Grove-Compatible-with-M5GO-FIRE-ESP32-Development-Kit/3226069_32922623759.html)
\ No newline at end of file
+- [3.96port ユニット 購入(AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-3-96-4Pin-Transfer-Module-Grove-Compatible-with-M5GO-FIRE-ESP32-Development-Kit/3226069_32922623759.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_adc.md b/docs/ja/product_documents/units/unit_adc.md
index f12f7d16..0ae6e3b2 100644
--- a/docs/ja/product_documents/units/unit_adc.md
+++ b/docs/ja/product_documents/units/unit_adc.md
@@ -34,4 +34,4 @@ ADC ユニットは自己校正機能を備えた16bit ADコンバータユニ
 ## 関連情報
 
 <!-- - [ADC ユニット 購入(スイッチサイエンス)]() -->
-- [ADC ユニット 購入(aliexpress)](https://www.aliexpress.com/store/product/M5Stack-Official-ADC-Unit-16-Bit-I2C-GROVE-ADS1100-Module-0V-to-12V-analog-to-digital/3226069_32946953374.html)
\ No newline at end of file
+- [ADC ユニット 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-ADC-Unit-16-Bit-I2C-GROVE-ADS1100-Module-0V-to-12V-analog-to-digital/3226069_32946953374.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_angle.md b/docs/ja/product_documents/units/unit_angle.md
index 28684310..4a5a4c96 100644
--- a/docs/ja/product_documents/units/unit_angle.md
+++ b/docs/ja/product_documents/units/unit_angle.md
@@ -19,4 +19,4 @@ ANGLE ユニットは可変抵抗器です。回転角度検出や音量調節
 
 ## 関連情報
 
-- [ANGLE ユニット 購入(aliexpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Mini-Angle-Unit-Potentiometer-Inside-Resistance-Adjustable-GPIO-GROVE-Co-n-nec-to-r/3226069_32931834705.html)
\ No newline at end of file
+- [ANGLE ユニット 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Mini-Angle-Unit-Potentiometer-Inside-Resistance-Adjustable-GPIO-GROVE-Co-n-nec-to-r/3226069_32931834705.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_button.md b/docs/ja/product_documents/units/unit_button.md
index ce718bcd..1312172c 100644
--- a/docs/ja/product_documents/units/unit_button.md
+++ b/docs/ja/product_documents/units/unit_button.md
@@ -18,4 +18,6 @@ BUTTON ユニットは一つのボタンを備えたユニットです。
     <img src="assets/img/product_pics/units/M5GO_Unit_button.png">
 </figure>
 
-- [BUTTON ユニット 購入(aliexpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Mini-Button-Unit-for-ESP32-Arduino-Micropython-Development-Kit-with-GROVE-GPIO-Port-Blockly/3226069_32921805637.html)
\ No newline at end of file
+## 関連情報
+
+- [BUTTON ユニット 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Mini-Button-Unit-for-ESP32-Arduino-Micropython-Development-Kit-with-GROVE-GPIO-Port-Blockly/3226069_32921805637.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_color_sensor.md b/docs/ja/product_documents/units/unit_color_sensor.md
index 6fccc62a..ea3c5fc1 100644
--- a/docs/ja/product_documents/units/unit_color_sensor.md
+++ b/docs/ja/product_documents/units/unit_color_sensor.md
@@ -2,8 +2,7 @@
 
 ## 概要
 
-This is a unit can detecte the color of object surface which integrates TCS3472 (a color sensor). The unit comunicates with M5Core with I2C.
-
+COLOR SENSOR ユニットは内蔵されたTCS3472により、対象物表面の色を検出する事ができます。M5StackはI2Cで値を取得可能です。
 
 ## 特徴
 
@@ -32,4 +31,4 @@ This is a unit can detecte the color of object surface which integrates TCS3472
 
 ## 関連情報
 
-- [Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-Color-Unit-TCS34725-Color-Sensor-RGB-Color-Sensor-Development-Board-Module-GROVE-I2C-Compatible/3226069_32946957647.html)
\ No newline at end of file
+- [COLOR SENSOR ユニット 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Color-Unit-TCS34725-Color-Sensor-RGB-Color-Sensor-Development-Board-Module-GROVE-I2C-Compatible/3226069_32946957647.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_dac.md b/docs/ja/product_documents/units/unit_dac.md
index 9572c5bc..0a797300 100644
--- a/docs/ja/product_documents/units/unit_dac.md
+++ b/docs/ja/product_documents/units/unit_dac.md
@@ -1,32 +1,33 @@
-# Unit ADC
+# DAC ユニット
 
-## DESCRIPTION
+## 概要
 
-This is a unit can convert digital signal to analog signal like voltage waveform, audio waveform and so on. It integrates a 12-bit high resolution DAC chip named MCP4725 which integrates a on-board non-volatile memory (EEPROM). The unit comunicates with M5Core with I2C. The DAC input and configuration data can be programmed to the EEPROM.
+DAC ユニットは電圧や音などのデジタル信号をアナログ信号に変換する機能を提供します。12 bitの分解能を持つMCP4725チップを採用しており、入力値やコンフィグレーションデータは内蔵する不揮発性メモリ(EEPROM)に書き込む事が可能です。
 
-## FEATURES
+## 特徴
 
--  Up to 12 bits of resolution
--  Output 0~3.3V voltage
--  Two Lego installation holes
+- 最大12bit 分解能
+- 出力電圧 0 ~ 3.3V
+- LEGO 互換
+- EEPROM
 
-## APPLICATION
+## アプリケーション
 
--  MP3 Audio Player
--  mini Oscilloscope
+- MP3 オーディオプレイヤー
+- ミニオシロスコープ
 
-## DOCUMENTS
+## ドキュメント
 
--  GitHub
+- GitHub
+  - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/DAC_MCP4725)
 
-   - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/DAC_MCP4725)
-
--  Datasheet
-
-   - [MCP4725](http://pdf1.alldatasheet.com/datasheet-pdf/view/233449/MICROCHIP/MCP4725.html)
-
--  [Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-DAC-Unit-MCP4725-I2C-DAC-Converter-Breakout-Module-Digital-to-Analog-12-Bits-0V/3226069_32947696641.html?spm=a2g1x.12024536.productList_5885013.pic_6)
+- データシート
+  - [MCP4725](http://pdf1.alldatasheet.com/datasheet-pdf/view/233449/MICROCHIP/MCP4725.html)
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_dac.png" height="300" width="300">
 </figure>
+
+## 関連情報
+
+- [DAC ユニット 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-DAC-Unit-MCP4725-I2C-DAC-Converter-Breakout-Module-Digital-to-Analog-12-Bits-0V/3226069_32947696641.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_dual_button.md b/docs/ja/product_documents/units/unit_dual_button.md
index 4cc743d3..da051ba6 100644
--- a/docs/ja/product_documents/units/unit_dual_button.md
+++ b/docs/ja/product_documents/units/unit_dual_button.md
@@ -1,19 +1,23 @@
-# Unit Dual BUTTON
+# Dual BUTTON ユニット
 
-## DESCRIPTION
+## 概要
 
-This Unit is a dual-button unit that can be detected whether a single button pressed or two buttons pressed
+このユニットは2つのボタンが搭載されたユニットです。
 
-## FEATURES
+## 特徴
 
--  Two Lego installation holes
--  GROVE Interface
+- LEGO 互換
+- Grove インターフェース
 
-## DOCUMENTS
+## ドキュメント
 
-- [GitHub](https://www.m5stack.com)
-- [Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-New-Mini-Dual-Button-Unit-Mini-with-GROVE-Port-Cable-Connector-Compatible-with-FIRE/3226069_32923126250.html?spm=a2g1x.12024536.productList_2187621.9)
+- ウェブサイト
+  - [M5Stack](https://www.m5stack.com)
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_dual_button.png">
-</figure>
\ No newline at end of file
+</figure>
+
+## 関連情報
+
+- [Dual BUTTON ユニット 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-New-Mini-Dual-Button-Unit-Mini-with-GROVE-Port-Cable-Connector-Compatible-with-FIRE/3226069_32923126250.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_env.md b/docs/ja/product_documents/units/unit_env.md
index 3fde9fda..cf99939a 100644
--- a/docs/ja/product_documents/units/unit_env.md
+++ b/docs/ja/product_documents/units/unit_env.md
@@ -1,28 +1,28 @@
-# Unit ENV
+# ENV ユニット
 
-## DESCRIPTION
+## 概要
 
-The Unit ENV is a environment sensor for M5GO that can easily detect
-temperature, humidity and air pressure with M5GO Core, including
-temperature and humidity sensor and absolute barometric pressure sensor.
+ENV ユニットは周辺の温度・湿度・気圧を取得する事ができます。
 
-## FEATURES
+## 特徴
 
--  Temperature:
--  measuring range: 20 ~ 60℃
--  resolution: ±0.2℃
--  Humidity:
--  measuring range: 20 ~ 95℃
--  resolution: 0.1%
--  Air pressure
--  measuring range: 300 ~ 1100hPa
--  resolution: ±1hPa
--  Two Lego installation holes
+- 温度:
+  - 計測範囲: 20 ~ 60℃
+  - 精度: ±0.2℃
+- 湿度:
+  - 計測範囲: 20 ~ 95℃
+  - 精度: 0.1%
+- 気圧:
+  - 計測範囲: 300 ~ 1100hPa
+  - 精度: ±1hPa
+- LEGO 互換
 
-## DOCUMENTS
-
-- [Purchase](https://www.aliexpress.com/store/3226069?spm=2114.search0104.3.5.66051a4dlpB2ti)
+## ドキュメント
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_env.png">
-</figure>
\ No newline at end of file
+</figure>
+
+## 関連情報
+
+- [ENV ユニット 購入(AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-Mini-ENV-Unit-with-DHT12-BMP280-Digital-DHT-12-Temperature-Humidity-Aire-Pressure-Sensor/3226069_32933115893.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_esp32cam.md b/docs/ja/product_documents/units/unit_esp32cam.md
index d14ac677..1c53e089 100644
--- a/docs/ja/product_documents/units/unit_esp32cam.md
+++ b/docs/ja/product_documents/units/unit_esp32cam.md
@@ -1,51 +1,60 @@
-# ESP32Cam
+# ESP32Cam ユニット
 
-## DESCRIPTION
+## 概要
 
-The **<mark>ESP32Cam</mark>** is a tiny unit based on ESP32 chip and OV2640. You can even program it through Arduino IDE.
+**<mark>ESP32Cam ユニット</mark>**は **ESP32** と **OV2640** を搭載しています。リチウムバッテリ、MPU6050（ジャイロ＋加速度センサー）、BME280（温湿度＋気圧センサー）、マイクなどと組み合わせることでバッテリ駆動の監視システムを構築することも可能です。
 
-The ESP32Cam equips the ESP32 with everything necessary to program, run and develop on the wonderful chip. It also features a LiPo charger , so your ESP32Cam project can be battery-powered and truly wireless. Additionally, the board reserved the MPU6050,BME280 and an analog MIC.
+## 特徴
 
-
-## INCLUDES
-
-- 1x M5 Camera
-- 1x Type-C USB v
-
-
-## FEATURES
-
-- ESP32 specifications
-    + Dual-core Tensilica LX6 microprocessor
-    + Up to 240MHz clock frequency
-    + 512K internal SRAM
-    + 4MB Flash memory
-    + Integrated 802.11 BGN WiFi transceiver
-    + Integrated dual-mode Bluetooth (classic and BLE)
-    + Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)
+- ESP32 spec
+  - デュアルコア Tensilica LX6 マイクロプロセッサ
+  - 最大クロック 240MHz
+  - 520KiB SRAM
+  - 4MB Flash メモリ
+  - 802.11 b/g/n Wi-Fi
+  - デュアルモード Bluetooth (classic and BLE)
+  - ハードウェアアクセラレーションによる暗号化 (AES, SHA2, ECC, RSA-4096)
 - CP2104 USB TTL
-- OV2640 sensor
-    - Output Formats(8-bit):
-        + YUV(422/420)/YCbCr422
-        + RGB565/555
-        + 8-bit compressed data
-        + 8-/10-bit Raw RGB data
-    - Maximum Image Transfer Rate
-        + UXGA/SXGA: 15fps
-        + SVGA: 30fps
-        + CIF: 60fps
-    - Scan Mode: Progressive
-- Camera specifications
-    + CCD size : 1/4inch
-    + Field of View : 78 degree
-    + Maxmium Pixel: 200W
-- Sensor best resolution: 1600 * 1200
-- Dimension: 25mm x 24mm
-- Weight: 5g
+- OV2640 センサー
+  - 出力フォーマット(8-bit):
+    - YUV(422/420)/YCbCr422
+    - RGB565/555
+    - 8-bit 圧縮データ
+    - 8/10-bit RAW RGB データ
+  - 最大画像転送レート
+    - UXGA/SXGA: 15fps
+    - SVGA: 30fps
+    - CIF: 60fps
+  - スキャンモード: Progressive
+- Camera spec
+  - CCD サイズ : 1/4inch
+  - 視野 : 78 度
+  - 最大ピクセル: 200W
+- 最大解像度: 1600 * 1200
+- サイズ: 25mm x 24mm
+- 重量: 5g
 
+## パッケージ内容
 
-## DOCUMENTS
-- **[Datasheet](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) (ESP32)**
-- **[Datasheet](https://www.uctronics.com/download/cam_module/OV2640DS.pdf) (OV2640)**
-- **[Quick Start](en/quick_start/m5camera/m5camera_quick_start)**
-- **[Read more](https://github.com/1zlab/1ZLAB_ESP32_Wifi_Camera)**
+- 1x M5 カメラ
+- 1x USB Type-C ケーブル
+
+## ドキュメント
+
+- データシート
+  - [ESP32](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf)
+  - [OV2640](https://www.uctronics.com/download/cam_module/OV2640DS.pdf)
+
+- クイックスタート
+  - [Arduino](/en/quick_start/m5camera/m5camera_quick_start)
+
+- サンプルコード
+  - [Arduino](https://github.com/1zlab/1ZLAB_ESP32_Wifi_Camera)
+
+<figure>
+    <img src="assets/img/product_pics/units/esp32cam.jpg">
+</figure>
+
+## 関連情報
+
+- [ESP32Cam ユニット 購入(AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-ESP32-Camera-Module-Development-Board-OV2640-Camera-Type-C-Grove-Port-3D-Wifi-Antenna/3226069_32881414545.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_hub.md b/docs/ja/product_documents/units/unit_hub.md
index 1941d6e9..da9b757c 100644
--- a/docs/ja/product_documents/units/unit_hub.md
+++ b/docs/ja/product_documents/units/unit_hub.md
@@ -1,20 +1,20 @@
-# Unit HUB
+# HUB ユニット
 
-## DESCRIPTION
+## 概要
 
-The Unit HUB is a module for M5GO to expand GROVE port added three GROVE
-ports for user. So you can control 3 GROVE devices with only one M5GO
-Core at a time.
+このユニットは3つのGroveコネクタ備えたハブユニットです。ユーザは任意のユニットを3つまで追加する事ができます。
 
-## FEATURES
+## 特徴
 
--  Instantly Add Three 4-Pins-GROVE ports to Any Compatible Device
--  Two Lego installation holes
+- 3つの4ピンGroveコネクタ
+- LEGO 互換
 
-## DOCUMENTS
-
-- [Purchase](https://www.aliexpress.com/store/3226069?spm=2114.search0104.3.5.66051a4dlpB2ti)
+## ドキュメント
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_hub.png">
-</figure>
\ No newline at end of file
+</figure>
+
+## 関連情報
+
+- [HUB ユニット 購入(AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-Mini-HUB-Unit-1-to-3-HUB-with-Universal-Connector-Grove-Port/3226069_32930928722.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_ir.md b/docs/ja/product_documents/units/unit_ir.md
index 730f5a0b..b1618370 100644
--- a/docs/ja/product_documents/units/unit_ir.md
+++ b/docs/ja/product_documents/units/unit_ir.md
@@ -1,28 +1,24 @@
-# Unit IR
+# IR ユニット
 
-## DESCRIPTION
+## 概要
 
-The Unit IR is a IR infrared obstacle avoidance sensor. It can
-be widely used in robot obstacle avoidance, obstacle avoidance car, line
-count, and black and white line tracking and so on.
+IRユニットは赤外線送受信機能をもったユニットです。障害物回避ロボット、ライントレーサーなどを作る事が可能です。
 
-It has a pair of infrared transmitting and receiving tube, tube infrared
-emit a certain frequency, when detecting direction meet with obstacles
-(reflecting surface), reflected infrared receiving tube, after the
-comparator circuit processing, green indicator will light up, at the
-same time signal output interface to output digital signal.
+## 特徴
 
-## FEATURES
+- IR送受信機
+- 検出距離 2 ~ 5cm
+- LEGO 互換
 
--  A pair of infrared transmitting and receiving tube
--  Detects the distance 2 ~ 5cm
--  Two Lego installation holes
+## ドキュメント
 
-## DOCUMENTS
-
-- [GitHub](https://github.com/m5stack/M5GO)
-- [Purchase](https://www.aliexpress.com/store/3226069?spm=2114.search0104.3.5.66051a4dlpB2ti)
+- GitHub
+  - [M5GO](https://github.com/m5stack/M5GO)
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_ir.png">
-</figure>
\ No newline at end of file
+</figure>
+
+## 関連情報
+
+- [IR ユニット 購入(AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-Mini-Infrared-Unit-IR-Remote-Reflective-Sensor-with-Receiver-and-Transmitter-GPIO-GROVE-Connector/3226069_32933215001.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_joystick.md b/docs/ja/product_documents/units/unit_joystick.md
index f09d9618..f7ae0c16 100644
--- a/docs/ja/product_documents/units/unit_joystick.md
+++ b/docs/ja/product_documents/units/unit_joystick.md
@@ -1,18 +1,18 @@
-# Unit JOYSTICK
+# JOYSTICK ユニット
 
-## DESCRIPTION
+## 概要
 
-This Unit is a joystick unit the same as game controller button that can be detected the X-Y axis offset and whether the joystick be pressed
+JOYSTICK ユニットはゲームコントローラーと同じジョイスティックです。X-Y軸オフセットとボタンクリックの入力を取得できます。
 
-## FEATURES
+## 特徴
 
--  Two Lego installation holes
--  GROVE Interface
+- LEGO 互換
+- Grove インターフェース
 
-## DOCUMENTS
+## ドキュメント
 
-- [GitHub](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/Joystick)
-- [Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-New-Joystick-Unit-MEGA328P-I2C-Grove-Connector-Compatible-X-Y-Axis-Button-for-ESP32/3226069_32921785624.html?spm=a2g1x.12024536.productList_2187621.10)
+- サンプルコード
+  - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/Joystick)
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_joystick.png">
@@ -24,4 +24,8 @@ This Unit is a joystick unit the same as game controller button that can be dete
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_joystick_3.png">
-</figure>
\ No newline at end of file
+</figure>
+
+## 関連情報
+
+- [JOYSTICK ユニット 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-New-Joystick-Unit-MEGA328P-I2C-Grove-Connector-Compatible-X-Y-Axis-Button-for-ESP32/3226069_32921785624.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_light.md b/docs/ja/product_documents/units/unit_light.md
index 24867f6f..dd11f9df 100644
--- a/docs/ja/product_documents/units/unit_light.md
+++ b/docs/ja/product_documents/units/unit_light.md
@@ -1,26 +1,25 @@
-# Unit light
+# LIGHT ユニット
 
-## DESCRIPTION
+## 概要
 
-The Unit light is a light sensor unit with an adjustable resistor that can detect the environmental light intensity.
-You can read analog signal(environmental light intensity) staright or get a digital signal(0/1) that means whether the light exists or not.
+LIGHT ユニットは調整抵抗付き明るさセンサーです。明るさをアナログ値として、光のオンオフをデジタル値(0/1)として取得できます。
 
+## 特徴
 
-## FEATURES
+- 閾値調整可能, 10KΩの調整抵抗を含みます
+- アナログ & デジタル出力
+- Grove インターフェース
+- LEGO 互換
 
--  Adjustable threshold, including 10K adjustable resistor
--  Analog & Digital output
--  Grove interface
--  Two Lego installation holes
+## ドキュメント
 
-## DOCUMENTS
-
--  GitHub
-
-   - [Arduino GitHub](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/Light)
-
--  [Purchase](https://www.aliexpress.com/store/3226069?spm=2114.search0104.3.5.66051a4dlpB2ti)
+- サンプルコード
+  - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/Light)
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_light.png" height="300" width="300">
 </figure>
+
+## 関連情報
+
+- [LIGHT ユニット](https://ja.aliexpress.com/store/product/M5Stack-Official-Light-Unit-with-Photoresistance-Grove-Port-Analog-Digital-Output-Compatible-with-M5GO-FIRE-ESP32/3226069_32920589923.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_m5camera.md b/docs/ja/product_documents/units/unit_m5camera.md
index 0188d191..00975c9f 100644
--- a/docs/ja/product_documents/units/unit_m5camera.md
+++ b/docs/ja/product_documents/units/unit_m5camera.md
@@ -1,19 +1,16 @@
-# M5Camera
+# M5Camera ユニット
 
-## DESCRIPTION
+## 概要
 
 The **<mark>M5Camera</mark>** is a tiny unit based on ESP32 chip and OV2640 <mark>including PSRAM</mark>. You can even program it through Arduino IDE.
 
 The M5Camera equips the ESP32 with everything necessary to program, run and develop on the wonderful chip. It also features a LiPo charger (IP5306) , so your M5Camera project can be battery-powered and truly wireless. Additionally, the board reserved the MPU6050,BME280 and an analog MIC.
 
 
-## INCLUDES
-
-- 1x M5 Camera
-- 1x Type-C USB v
 
 
-## FEATURES
+
+## 特徴
 
 - ESP32 specifications
     + Dual-core Tensilica LX6 microprocessor
@@ -43,13 +40,21 @@ The M5Camera equips the ESP32 with everything necessary to program, run and deve
 - Dimension: 25mm x 24mm
 - Weight: 5g
 
+## パッケージ内容
 
-## DOCUMENTS
+- 1x M5 カメラ
+- 1x USB Type-C ケーブル
+
+## ドキュメント
 - **[Datasheet](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) (ESP32)**
 - **[Datasheet](https://www.uctronics.com/download/cam_module/OV2640DS.pdf) (OV2640)**
-- **[Quick Start](en/quick_start/m5camera/m5camera_quick_start)**
+- **[Quick Start](/en/quick_start/m5camera/m5camera_quick_start)**
 - **[Read more](https://github.com/1zlab/1ZLAB_ESP32_Wifi_Camera)**
 
 <figure>
     <img src="assets/img/product_pics/units/m5camera.png">
-</figure>
\ No newline at end of file
+</figure>
+
+## 関連情報
+
+- [M5Camera ユニット 購入(AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-ESP32-WROVER-with-PSRAM-Camera-Module-OV2640-Type-C-Grove-Port-Mini-Camera-Development/3226069_32909972455.html)
\ No newline at end of file
diff --git a/docs/ja/product_documents/units/unit_makey.md b/docs/ja/product_documents/units/unit_makey.md
index c4db25be..42326c71 100644
--- a/docs/ja/product_documents/units/unit_makey.md
+++ b/docs/ja/product_documents/units/unit_makey.md
@@ -1,12 +1,12 @@
 # Unit makey
 
-## DESCRIPTION
+## 概要
 
 The Unit makey is a makey unit with 16 touchable pins.The Unit makey is based on Arduino Uno Mega328p chip.It communicates with M5Stack Core via GROVE(I2C).It's I2C address is 0x51.
 
 
 
-## FEATURES
+## 特徴
 
 -  Arduino Mega328p Controller
 -  16 Keys Fruit Piano(PD0-7 & PB0-5), 1 NeoPixel pin(PC2) and 1 Buzzer pin(PC3)
@@ -19,7 +19,7 @@ The Unit makey is a makey unit with 16 touchable pins.The Unit makey is based on
 -  Makey Application
 -  RGB Application with Adafruit Library
 
-## DOCUMENTS
+## ドキュメント
 
 - [GitHub](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/Makey)
 
diff --git a/docs/ja/product_documents/units/unit_moisture.md b/docs/ja/product_documents/units/unit_moisture.md
index 1f0ec320..ae537ab9 100644
--- a/docs/ja/product_documents/units/unit_moisture.md
+++ b/docs/ja/product_documents/units/unit_moisture.md
@@ -1,18 +1,18 @@
 # Unit moisture
 
-## DESCRIPTION
+## 概要
 
 The Unit moisture is a moisture detective unit for measuring the moisture in soil. The soil moisture sensor is pretty straight forward to use. The two large exp osed pads function as probes for the sensor, together acting as a variable resistor. The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
 You can read the moisture in soil staright or get a digital signal(0/1) that means the high(or low) humidity.
 
-## FEATURES
+## 特徴
 
 -  Adjustable threshold, including 10K adjustable resistor
 -  Analog & Digital output
 -  Grove interface
 -  Two Lego installation holes
 
-## DOCUMENTS
+## ドキュメント
 
 -  GitHub
 
diff --git a/docs/ja/product_documents/units/unit_ncir.md b/docs/ja/product_documents/units/unit_ncir.md
index 5bf4e2fc..88b56e30 100644
--- a/docs/ja/product_documents/units/unit_ncir.md
+++ b/docs/ja/product_documents/units/unit_ncir.md
@@ -1,10 +1,10 @@
 # Unit NCIR
 
-## DESCRIPTION
+## 概要
 
 This is a unit can measure body temperature or be applicated for movement detection which integrates MLX90641 (an infrared thermometer designed for non-contact temperature sensing). The unit comunicates with M5Core with I2C.
 
-## FEATURES
+## 特徴
 
 -  High precision
 -  Detection range: -70℃~382.2℃
@@ -15,7 +15,7 @@ This is a unit can measure body temperature or be applicated for movement detect
 -  body temperature measurement
 -  movement detection
 
-## DOCUMENTS
+## ドキュメント
 
 -  GitHub
 
diff --git a/docs/ja/product_documents/units/unit_neopixel.md b/docs/ja/product_documents/units/unit_neopixel.md
index 051f4025..41d7a392 100644
--- a/docs/ja/product_documents/units/unit_neopixel.md
+++ b/docs/ja/product_documents/units/unit_neopixel.md
@@ -1,16 +1,16 @@
 # Unit NeoPixel
 
-## DESCRIPTION
+## 概要
 
 This is a RGB LED Cable unit. You can program it using NeoPixel Lib supported by Adafruit or using M5Flow that will be easier. The unit comunicates with M5Core with GROVE Interface.
 
-## FEATURES
+## 特徴
 
 -  the length: 10cm/20cm/0.5m/1m/2m
 -  GROVE Interface
 -  Two Lego installation holes
 
-## DOCUMENTS
+## ドキュメント
 
 -  GitHub
 
@@ -19,5 +19,5 @@ This is a RGB LED Cable unit. You can program it using NeoPixel Lib supported by
 -  [Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-NeoPixel-RGB-LEDs-Cable-SK6812-with-GROVE-Port-2m-1m-50cm-20cm-10cm/3226069_32950831315.html?spm=a2g1x.12024536.productList_5885013.pic_0)
 
 <figure>
-    <img src="assets/img/product_pics/units/M5GO_Unit_neopixel.png" height="300" width="300">
+    <img src="assets/img/product_pics/units/M5GO_Unit_neopixel.jpg" height="300" width="300">
 </figure>
diff --git a/docs/ja/product_documents/units/unit_pir.md b/docs/ja/product_documents/units/unit_pir.md
index 6c595c72..3185ff5d 100644
--- a/docs/ja/product_documents/units/unit_pir.md
+++ b/docs/ja/product_documents/units/unit_pir.md
@@ -1,16 +1,16 @@
 # Unit PIR
 
-## DESCRIPTION
+## 概要
 
 The Unit PIR is a human infrared sensor for M5GO that can easily detect
 whether someone appears in front of it with M5GO Core.
 
-## FEATURES
+## 特徴
 
 -  Detects the distance 150cm
 -  Two Lego installation holes
 
-## DOCUMENTS
+## ドキュメント
 
 - [GitHub](https://github.com/m5stack/M5GO)
 - [Purchase](https://www.aliexpress.com/store/3226069?spm=2114.search0104.3.5.66051a4dlpB2ti)
diff --git a/docs/ja/product_documents/units/unit_proto.md b/docs/ja/product_documents/units/unit_proto.md
index ee022a79..192775af 100644
--- a/docs/ja/product_documents/units/unit_proto.md
+++ b/docs/ja/product_documents/units/unit_proto.md
@@ -1,18 +1,18 @@
 # Unit proto
 
-## DESCRIPTION
+## 概要
 
 The M5Stack proto unit is a flexible blank circle with 100mil pitch of holes. You can create any circle
 that could controlled by M5GO Core as you like.
 
-## FEATURES
+## 特徴
 
 -  Flexible extended blank circle
 -  70 holes(pitch of holes: 100mil)
 -  GROVE interface
 -  Two Lego installation holes
 
-## DOCUMENTS
+## ドキュメント
 
 - [GitHub](https://github.com/m5stack/M5GO)
 - [Purchase](https://www.aliexpress.com/store/3226069?spm=2114.search0104.3.5.66051a4dlpB2ti)
diff --git a/docs/ja/product_documents/units/unit_relay.md b/docs/ja/product_documents/units/unit_relay.md
index bdafa77e..f82c95b0 100644
--- a/docs/ja/product_documents/units/unit_relay.md
+++ b/docs/ja/product_documents/units/unit_relay.md
@@ -1,12 +1,12 @@
 # Unit relay
 
-## DESCRIPTION
+## 概要
 
 The Unit relay is a unit that allows you to control large power loads with a light-current, safe, reliable power control system. the large power loads you can safely control is up to 24 VDC or 120 VAC.
 Only a low electrial level is sent to this unit, the relay will be close and the large power loads you want to control will be working.
 
 
-## FEATURES
+## 特徴
 -  A single input
 -  Up to 3A @ 24 VDC or 120 VAC
 -  GROVE interface
@@ -17,7 +17,7 @@ Only a low electrial level is sent to this unit, the relay will be close and the
 -  Be perfect for large inductive loads(like DC motors electrocircuit, intelligent interpolation...)
 -  Control a standard wall outlet device
 
-## DOCUMENTS
+## ドキュメント
 
 -  GitHub
 
diff --git a/docs/ja/product_documents/units/unit_rgb.md b/docs/ja/product_documents/units/unit_rgb.md
index c0a892b1..c5172ea4 100644
--- a/docs/ja/product_documents/units/unit_rgb.md
+++ b/docs/ja/product_documents/units/unit_rgb.md
@@ -1,16 +1,16 @@
 # Unit RGB
 
-## DESCRIPTION
+## 概要
 
 The Unit RGB is a sensor including three RGB LED lights and two GROVE
 ports.You can display specified color using M5GO Core through Blockly,
 Arduino or MicroPython.
 
-## FEATURES
+## 特徴
 
 -  Two Lego installation holes
 
-## DOCUMENTS
+## ドキュメント
 
 - [Purchase](https://www.aliexpress.com/store/3226069?spm=2114.search0104.3.5.66051a4dlpB2ti)
 
diff --git a/docs/ja/product_documents/units/unit_thermal.md b/docs/ja/product_documents/units/unit_thermal.md
index d2e9ed6c..bba4b124 100644
--- a/docs/ja/product_documents/units/unit_thermal.md
+++ b/docs/ja/product_documents/units/unit_thermal.md
@@ -1,13 +1,13 @@
 # Unit thermal
 
-## DESCRIPTION
+## 概要
 
 The Unit thermal is a thermal camera module contains thermopile sensors named MLX90640. the MLX90640 contains a 32x64 piexls IR array. It communicates with M5GO Core via GROVE which actually is a I2C interfacel.
 As the images show you can detect surface temperatures from many feet away with an accuracy of ±1.5°C (best case).
 After burn the firmware of the module's demostatrion to M5GO Core via `M5Burner`, the module will be running. Then you can program it via Arduino IDE.
 
 
-## FEATURES
+## 特徴
 
 -  32x24 piexls
 -  Target temperature -40°C ÷ 300°C
@@ -21,7 +21,7 @@ After burn the firmware of the module's demostatrion to M5GO Core via `M5Burner`
 -  Visual IR thermometers
 -  Temperature sensing element for intelligent building air conditioning
 
-## DOCUMENTS
+## ドキュメント
 
 -  GitHub
 
diff --git a/docs/ja/product_documents/units/unit_tof.md b/docs/ja/product_documents/units/unit_tof.md
index 8a9a6517..a2b8eb9c 100644
--- a/docs/ja/product_documents/units/unit_tof.md
+++ b/docs/ja/product_documents/units/unit_tof.md
@@ -1,10 +1,10 @@
 # Unit ToF
 
-## DESCRIPTION
+## 概要
 
 This is a unit can detect distance using a newest "Time-to-Flight" sensor using laser light. It is higher precision than most distance sensors. The unit comunicates with M5Core with I2C.
 
-## FEATURES
+## 特徴
 
 -  High precision
 -  Measure absolute distances up to 2m
@@ -14,7 +14,7 @@ This is a unit can detect distance using a newest "Time-to-Flight" sensor using
 
 -  1D gesture recognition
 
-## DOCUMENTS
+## ドキュメント
 
 -  GitHub
 
diff --git a/docs/sidebar.md b/docs/sidebar.md
index ea8962d6..d3685e9a 100644
--- a/docs/sidebar.md
+++ b/docs/sidebar.md
@@ -1,8 +1,8 @@
-- [Product Documents](en/product_documents)
-- [Quick Start](en/quick_start)
-- [API Rreference](en/api_reference)
-- [M5Stack Cases](en/m5stack_cases)
-- [FAQ](en/faq)
+- [Product Documents](/en/product_documents)
+- [Quick Start](/en/quick_start)
+- [API Rreference](/en/api_reference)
+- [M5Stack Cases](/en/m5stack_cases)
+- [FAQ](/en/faq)
 
 
 - **Links**
diff --git a/docs/zh_CN/product_documents.md b/docs/zh_CN/product_documents.md
index 307c589e..a5f83069 100644
--- a/docs/zh_CN/product_documents.md
+++ b/docs/zh_CN/product_documents.md
@@ -1,6 +1,6 @@
 # 产品列表
 
-中文 | [English](en/product_documents.md) | [日本語](ja/product_documents.md)
+中文 | [English](/en/product_documents) | [日本語](ja/product_documents)
 
 <img src='assets/img/product_pics/1.jpg'> <img src='assets/img/product_pics/cores.png'>
 
diff --git a/docs/zh_CN/product_documents/tools/tool_usb_downloader.md b/docs/zh_CN/product_documents/tools/tool_usb_downloader.md
index 2f9ac5a4..4be27415 100644
--- a/docs/zh_CN/product_documents/tools/tool_usb_downloader.md
+++ b/docs/zh_CN/product_documents/tools/tool_usb_downloader.md
@@ -27,7 +27,7 @@ There are two reserved pins(RTS, DTR) on M5Stack USB Downloader for other applic
 ## DOCUMENTS
 
 - [Schematic](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/USBtool.pdf)
-- [UserGuide](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/M5Stack-USB-Downloader-UserGuide.md)
+- [UserGuide](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/M5Stack-USB-Downloader-UserGuide)
 
 <!-- <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_moisture.jpg" height="50" width="49">
diff --git a/docs/zh_CN/product_documents/units/unit_esp32cam.md b/docs/zh_CN/product_documents/units/unit_esp32cam.md
index d14ac677..5f4aebc7 100644
--- a/docs/zh_CN/product_documents/units/unit_esp32cam.md
+++ b/docs/zh_CN/product_documents/units/unit_esp32cam.md
@@ -47,5 +47,6 @@ The ESP32Cam equips the ESP32 with everything necessary to program, run and deve
 ## DOCUMENTS
 - **[Datasheet](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) (ESP32)**
 - **[Datasheet](https://www.uctronics.com/download/cam_module/OV2640DS.pdf) (OV2640)**
-- **[Quick Start](en/quick_start/m5camera/m5camera_quick_start)**
+- **[Quick Start](/en/quick_start/m5camera/m5camera_quick_start)**
 - **[Read more](https://github.com/1zlab/1ZLAB_ESP32_Wifi_Camera)**
+- [ESP32Cam purchase(AliExpress)](https://ja.aliexpress.com/store/product/M5Stack-Official-ESP32-Camera-Module-Development-Board-OV2640-Camera-Type-C-Grove-Port-3D-Wifi-Antenna/3226069_32881414545.html)
diff --git a/docs/zh_CN/product_documents/units/unit_m5camera.md b/docs/zh_CN/product_documents/units/unit_m5camera.md
index 0188d191..9f1b6ed2 100644
--- a/docs/zh_CN/product_documents/units/unit_m5camera.md
+++ b/docs/zh_CN/product_documents/units/unit_m5camera.md
@@ -47,7 +47,7 @@ The M5Camera equips the ESP32 with everything necessary to program, run and deve
 ## DOCUMENTS
 - **[Datasheet](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) (ESP32)**
 - **[Datasheet](https://www.uctronics.com/download/cam_module/OV2640DS.pdf) (OV2640)**
-- **[Quick Start](en/quick_start/m5camera/m5camera_quick_start)**
+- **[Quick Start](/en/quick_start/m5camera/m5camera_quick_start)**
 - **[Read more](https://github.com/1zlab/1ZLAB_ESP32_Wifi_Camera)**
 
 <figure>
diff --git a/docs/zh_CN/product_documents/units/unit_neopixel.md b/docs/zh_CN/product_documents/units/unit_neopixel.md
index 051f4025..09e65d5a 100644
--- a/docs/zh_CN/product_documents/units/unit_neopixel.md
+++ b/docs/zh_CN/product_documents/units/unit_neopixel.md
@@ -19,5 +19,5 @@ This is a RGB LED Cable unit. You can program it using NeoPixel Lib supported by
 -  [Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-NeoPixel-RGB-LEDs-Cable-SK6812-with-GROVE-Port-2m-1m-50cm-20cm-10cm/3226069_32950831315.html?spm=a2g1x.12024536.productList_5885013.pic_0)
 
 <figure>
-    <img src="assets/img/product_pics/units/M5GO_Unit_neopixel.png" height="300" width="300">
+    <img src="assets/img/product_pics/units/M5GO_Unit_neopixel.jpg" height="300" width="300">
 </figure>
diff --git a/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md b/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
index 54feca6a..88d27a34 100644
--- a/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
+++ b/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
@@ -14,7 +14,7 @@
 
 2. [示例](#example)
 
-!> **注意** *在配置环境之前，先确保你已经安装了USB驱动，并且M5Core能通过串口与PC通信。 如果还没的话，看这篇文章[如何建立串口连接](en/related_documents/establish_serial_connection).*
+!> **注意** *在配置环境之前，先确保你已经安装了USB驱动，并且M5Core能通过串口与PC通信。 如果还没的话，看这篇文章[如何建立串口连接](/en/related_documents/establish_serial_connection).*
 
 ## 配置环境
 
diff --git a/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md b/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
index e1d0a523..f1f98b57 100644
--- a/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
+++ b/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
@@ -14,7 +14,7 @@
 
 ?> **提示** *如果你想升级Arduino-M5Stack库的话，请移步阅读这篇文档[如何升级Arduino-M5Stack库](www.m5stack.com).*
 
-!> **注意** *建议你先确认安装了`USB驱动`, `Git` 和 `Arduino IDE(安装路径为: C:\Program Files\Arduino)`。 如果还没的话，阅读这两篇文档[如何建立串口连接](en/related_documents/establish_serial_connection)和[安装Git和Arduino IDE](en/related_documents/how_to_install_git_and_arduino)。 如果你的Arduino IDE安装路径不是`C:\Program Files\Arduino`的话, 为了方便搭建以下的开发环境，请按照默认安装路径重新安装。
+!> **注意** *建议你先确认安装了`USB驱动`, `Git` 和 `Arduino IDE(安装路径为: C:\Program Files\Arduino)`。 如果还没的话，阅读这两篇文档[如何建立串口连接](/en/related_documents/establish_serial_connection)和[安装Git和Arduino IDE](/en/related_documents/how_to_install_git_and_arduino)。 如果你的Arduino IDE安装路径不是`C:\Program Files\Arduino`的话, 为了方便搭建以下的开发环境，请按照默认安装路径重新安装。
 
 ## 1. 配置环境
 
diff --git a/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_MicroPython.md b/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_MicroPython.md
index 890ff986..e6fe08ea 100644
--- a/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_MicroPython.md
+++ b/docs/zh_CN/quick_start/m5core/m5stack_core_get_started_MicroPython.md
@@ -1,6 +1,6 @@
 # M5Flow Quick Start(Blockly/MicroPython)
 
-!> **Note** *If it's first time to use M5Stack Core or you want to change the networkable AP that means the Core can't access [flow.m5stack.com](flow.m5stack.com), you need visit this article for setting wifi [How to connect wifi using Core](en/related_documents/how_to_connect_wifi_using_core).*
+!> **Note** *If it's first time to use M5Stack Core or you want to change the networkable AP that means the Core can't access [flow.m5stack.com](flow.m5stack.com), you need visit this article for setting wifi [How to connect wifi using Core](/en/related_documents/how_to_connect_wifi_using_core).*
 
 ### **By default, we account your M5Core has been connected with the networkable AP. And the screen shows like this figure below after you pressed the `UPLOAD` button on the left.**
 
@@ -103,4 +103,4 @@ Now, run it and enjoy your musical work!
 
 ## Complete
 
-?> **Note** *Also, For being more familiar with M5, here some simple pratices ([M5Flow Practices about Blockly](en/practice/practice_blockly) and [M5Flow Practices about Blockly](en/practice/practice_micropython)) for you or you can contact us for a [WorkShop](support@m5stack.com).*
+?> **Note** *Also, For being more familiar with M5, here some simple pratices ([M5Flow Practices about Blockly](/en/practice/practice_blockly) and [M5Flow Practices about Blockly](/en/practice/practice_micropython)) for you or you can contact us for a [WorkShop](support@m5stack.com).*
diff --git a/docs/zh_CN/quick_start/m5core/m5stack_core_quick_start.md b/docs/zh_CN/quick_start/m5core/m5stack_core_quick_start.md
index 85cfa4fb..5aa2ac62 100644
--- a/docs/zh_CN/quick_start/m5core/m5stack_core_quick_start.md
+++ b/docs/zh_CN/quick_start/m5core/m5stack_core_quick_start.md
@@ -4,4 +4,4 @@
 
 <img src="assets/img/getting_started_pics/arduino_logo.png"> | <img src="assets/img/getting_started_pics/blockly_and_micropython.png">
 ---|---
-[Arduino](en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) | [Blockly/MicroPython](en/quick_start/m5core/m5stack_core_get_started_MicroPython)
+[Arduino](/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS) | [Blockly/MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)