diff --git a/.openclaw-sync/source.json b/.openclaw-sync/source.json
index e5c425b33..57d775ea5 100644
--- a/.openclaw-sync/source.json
+++ b/.openclaw-sync/source.json
@@ -1,5 +1,5 @@
 {
   "repository": "openclaw/openclaw",
-  "sha": "1ad5695aa483872f6bb1105100dd4281cbab1181",
-  "syncedAt": "2026-04-05T10:16:35.715Z"
+  "sha": "dbfd96f4eca2b3ed1f1fa6e4351718fb9dc82232",
+  "syncedAt": "2026-04-05T10:33:29.967Z"
 }
diff --git a/docs/.i18n/README.md b/docs/.i18n/README.md
index 75cbaea19..60c54b6dc 100644
--- a/docs/.i18n/README.md
+++ b/docs/.i18n/README.md
@@ -2,7 +2,7 @@
 
 This folder stores translation config for the source docs repo.
 
-Generated zh-CN pages and the live zh-CN translation memory live in the publish repo:
+Generated locale trees and live translation memory now live in the publish repo:
 
 - repo: `openclaw/docs`
 - local checkout: `~/Projects/openclaw-docs`
@@ -11,7 +11,7 @@ Generated zh-CN pages and the live zh-CN translation memory live in the publish
 
 - English docs are authored in `openclaw/openclaw`.
 - The source docs tree lives under `docs/`.
-- The source repo no longer keeps committed `docs/zh-CN/**`.
+- The source repo no longer keeps committed generated locale trees such as `docs/zh-CN/**` or `docs/ja-JP/**`.
 
 ## End-to-end flow
 
@@ -20,20 +20,22 @@ Generated zh-CN pages and the live zh-CN translation memory live in the publish
 3. `openclaw/openclaw/.github/workflows/docs-sync-publish.yml` mirrors the docs tree into `openclaw/docs`.
 4. The sync script rewrites the publish `docs/docs.json` so `zh-Hans` navigation exists there even though it is no longer committed in the source repo.
 5. `openclaw/docs/.github/workflows/translate-zh-cn.yml` refreshes `docs/zh-CN/**` once a day, on demand, and after source-repo release dispatches.
+6. `openclaw/docs/.github/workflows/translate-ja-jp.yml` does the same for `docs/ja-JP/**`.
 
 ## Why the split exists
 
-- Keep generated zh-CN output out of the main product repo.
+- Keep generated locale output out of the main product repo.
 - Keep Mintlify on a single published docs tree.
-- Preserve the built-in language switcher by letting the publish repo own `docs/zh-CN/**`.
+- Preserve the built-in language switcher by letting the publish repo own generated locale trees.
 
 ## Files in this folder
 
 - `glossary.<lang>.json` — preferred term mappings used as prompt guidance.
+- `ja-navigation.json` — the `ja` Mintlify nav block reinserted into the publish repo during sync.
 - `zh-Hans-navigation.json` — the `zh-Hans` Mintlify nav block reinserted into the publish repo during sync.
 - `<lang>.tm.jsonl` — translation memory keyed by workflow + model + text hash.
 
-In this repo, `docs/.i18n/zh-CN.tm.jsonl` is intentionally no longer committed.
+In this repo, generated locale TM files such as `docs/.i18n/zh-CN.tm.jsonl` and `docs/.i18n/ja-JP.tm.jsonl` are intentionally no longer committed.
 
 ## Glossary format
 
@@ -57,11 +59,11 @@ Fields:
 
 - `scripts/docs-i18n` still owns translation generation.
 - Doc mode writes `x-i18n.source_hash` into each translated page.
-- The publish workflow precomputes a pending file list by comparing the current English source hash to the stored zh-CN `x-i18n.source_hash`.
+- Each publish workflow precomputes a pending file list by comparing the current English source hash to the stored locale `x-i18n.source_hash`.
 - If the pending count is `0`, the expensive translation step is skipped entirely.
 - If there are pending files, the workflow translates only those files.
 - The publish workflow retries transient model-format failures, but unchanged files stay skipped because the same hash check runs on each retry.
-- The source repo also dispatches a zh-CN refresh after published GitHub releases so release docs can catch up without waiting for the daily cron.
+- The source repo also dispatches zh-CN and ja-JP refreshes after published GitHub releases so release docs can catch up without waiting for the daily cron.
 
 ## Operational notes
 
diff --git a/docs/.i18n/ja-navigation.json b/docs/.i18n/ja-navigation.json
new file mode 100644
index 000000000..b15a7c59a
--- /dev/null
+++ b/docs/.i18n/ja-navigation.json
@@ -0,0 +1,18 @@
+{
+  "language": "ja",
+  "tabs": [
+    {
+      "tab": "はじめに",
+      "groups": [
+        {
+          "group": "概要",
+          "pages": ["ja-JP/index"]
+        },
+        {
+          "group": "初回セットアップ",
+          "pages": ["ja-JP/start/getting-started", "ja-JP/start/wizard"]
+        }
+      ]
+    }
+  ]
+}