diff --git a/packages/backend/src/misc/count-same-renotes.ts b/packages/backend/src/misc/count-same-renotes.ts
index 705fc35d57..c966dd3460 100644
--- a/packages/backend/src/misc/count-same-renotes.ts
+++ b/packages/backend/src/misc/count-same-renotes.ts
@@ -1,4 +1,4 @@
-import { prepared, scyllaClient } from "@/db/scylla";
+import { scyllaClient } from "@/db/scylla.js";
 import { Notes } from "@/models/index.js";
 
 /**
diff --git a/packages/backend/src/services/note/delete.ts b/packages/backend/src/services/note/delete.ts
index 5482c9563b..563b1fb887 100644
--- a/packages/backend/src/services/note/delete.ts
+++ b/packages/backend/src/services/note/delete.ts
@@ -30,9 +30,9 @@ import {
 } from "@/db/scylla.js";
 
 /**
- * 投稿を削除します。
- * @param user 投稿者
- * @param note 投稿
+ * Delete a post
+ * @param user Poster
+ * @param note Post
  */
 export default async function (
 	user: { id: User["id"]; uri: User["uri"]; host: User["host"] },
@@ -41,7 +41,7 @@ export default async function (
 ) {
 	const deletedAt = new Date();
 
-	// この投稿を除く指定したユーザーによる指定したノートのリノートが存在しないとき
+	// If no other boosts exists except this (potentially boost) post
 	if (
 		note.renoteId &&
 		(await countSameRenotes(user.id, note.renoteId, note.id)) === 0