diff --git a/ja.diff b/ja.diff
index 108cd46..2711030 100644
--- a/ja.diff
+++ b/ja.diff
@@ -1,7 +1,5 @@
 --- ja.json
 +++ ja.json
 
-+RewardMailType_content_136: "ログイン-高級の未受取報酬をメールで配布しました。ご確認ください。"
-+RewardMailType_title_136: "ログインイベント未受取報酬補填"
--locale_ui_activityBoss_reward_preview: "次の報酬確認："
-+locale_ui_activityBoss_reward_preview: "次の目標スコア"
\ No newline at end of file
+-ItemBase_name_148: "宝箱の鍵"
++ItemBase_name_148: "探求の鍵"
\ No newline at end of file
diff --git a/ja.json b/ja.json
index 6a27a5f..815cfae 100644
--- a/ja.json
+++ b/ja.json
@@ -13458,7 +13458,7 @@
   "ItemBase_name_1464501": "慈愛の聖女-体操服",
   "ItemBase_name_1464511": "慈愛の聖女-体操服の欠片",
   "ItemBase_name_147": "バレンタインデー宝箱Ⅱ",
-  "ItemBase_name_148": "宝箱の鍵",
+  "ItemBase_name_148": "探求の鍵",
   "ItemBase_name_149": "桜花宝箱Ⅰ",
   "ItemBase_name_15": "五紋の証",
   "ItemBase_name_150": "桜花宝箱Ⅱ",