diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 92a7f63..ddd66ff 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -6,4 +6,21 @@
         <item>Days</item>
         <item>Weeks</item>
     </string-array>
+    <string name="app_tagline">モダンなカレンダー。</string>
+    <string name="state_loading">読み込み中…</string>
+    <string name="state_retry">リトライ</string>
+    <string name="month_today_action">今日</string>
+    <string name="month_action_settings">設定</string>
+    <string name="event_detail_description">説明</string>
+    <string name="event_edit_add_reminder">リマインダーを追加</string>
+    <string name="event_edit_save">保存</string>
+    <string name="event_detail_all_day">終日</string>
+    <string name="view_month">月</string>
+    <string name="view_week">週</string>
+    <string name="view_day">日</string>
+    <string name="settings_section_backup">バックアップと復元</string>
+    <string name="settings_special_dates_type_birthday">誕生日</string>
+    <string name="settings_special_dates_sync_now">今すぐ同期</string>
+    <string name="settings_special_dates_last_synced">最終同期 %1$s</string>
+    <string name="settings_section_notifications">通知</string>
 </resources>