diff --git a/i18n/en.yaml b/i18n/en.yaml
new file mode 100644
index 0000000..2b11b83
--- /dev/null
+++ b/i18n/en.yaml
@@ -0,0 +1,2 @@
+article:
+  on_this_page: "On this page"
diff --git a/i18n/ja.yaml b/i18n/ja.yaml
new file mode 100644
index 0000000..91c46b4
--- /dev/null
+++ b/i18n/ja.yaml
@@ -0,0 +1,2 @@
+article:
+  on_this_page: "このページでは"
diff --git a/layouts/partials/toc.html b/layouts/partials/toc.html
index 3e8322e..0f37015 100644
--- a/layouts/partials/toc.html
+++ b/layouts/partials/toc.html
@@ -7,7 +7,7 @@
   {{ if $toc }}
     <div class="sticky top-16 overflow-y-auto pr-4 pt-6 text-sm [hyphens:auto] max-h-[calc(100vh-4rem-env(safe-area-inset-bottom))] ltr:-mr-4 rtl:-ml-4">
       {{ with .Fragments.Headings }}
-        <p class="mb-4 font-semibold tracking-tight">On This Page {{ $toc }}</p>
+        <p class="mb-4 font-semibold tracking-tight">{{ i18n "article.on_this_page" }}</p>
         {{ range . }}
           <ul>
             {{ with .Headings }}