diff --git a/Casks/h/hhkb.rb b/Casks/h/hhkb.rb
new file mode 100644
index 0000000000..110d579049
--- /dev/null
+++ b/Casks/h/hhkb.rb
@@ -0,0 +1,38 @@
+cask "hhkb" do
+  version "1.3.0"
+  sha256 "ad9bad341ebf6a189b907b0dd5ee68627d508664335ea75e0109964a25d268f9"
+
+  url "https://origin.pfultd.com/downloads/hhkb/mac/HHKBkeymapTool_#{version.no_dots}ma.dmg",
+      verified: "origin.pfultd.com/downloads/hhkb/mac/"
+  name "Happy Hacking Keyboard Keymap Tool"
+  desc "Allows keymap customization on HHKB HYBRID Type-S and HYBRID models"
+  homepage "https://happyhackingkb.com/"
+
+  livecheck do
+    url "https://happyhackingkb.com/download/"
+    regex(/macOS\s+:\s+Version\s+(\d+(?:\.\d+)+)/i)
+  end
+
+  depends_on macos: ">= :mojave"
+
+  pkg "HHKBkeymapTool_#{version.no_dots}ma.pkg"
+
+  uninstall pkgutil: "jp.co.pfu.hhkb-keymap-tool.pkg.V#{version}",
+            quit:    "jp.co.pfu.hhkb-keymap-tool",
+            delete:  [
+              "#{appdir}/hhkb-keymap-tool*",
+              "#{appdir}/HHKB/EULA_*.rtf",
+              "#{appdir}/HHKB/OSS_License.txt",
+            ],
+            rmdir:   "#{appdir}/HHKB"
+
+  zap trash: [
+        "~/Library/Application Support/hhkb-keymap-tool/*.log",
+        "~/Library/Preferences/jp.co.pfu.hhkb-keymap-tool.plist",
+      ],
+      rmdir: "~/Library/Application Support/hhkb-keymap-tool"
+
+  caveats do
+    requires_rosetta
+  end
+end