diff --git a/packages/backend/src/remote/activitypub/kernel/accept/index.ts b/packages/backend/src/remote/activitypub/kernel/accept/index.ts
index b5102da9b..ee0b6ed88 100644
--- a/packages/backend/src/remote/activitypub/kernel/accept/index.ts
+++ b/packages/backend/src/remote/activitypub/kernel/accept/index.ts
@@ -4,17 +4,15 @@ import Resolver from '@/remote/activitypub/resolver.js';
 import { IAccept, isFollow, getApType } from '@/remote/activitypub/type.js';
 import acceptFollow from './follow.js';
 
-const logger = apLogger;
-
 export default async (actor: CacheableRemoteUser, activity: IAccept): Promise<string> => {
 	const uri = activity.id || activity;
 
-	logger.info(`Accept: ${uri}`);
+	apLogger.info(`Accept: ${uri}`);
 
 	const resolver = new Resolver();
 
 	const object = await resolver.resolve(activity.object).catch(e => {
-		logger.error(`Resolution failed: ${e}`);
+		apLogger.error(`Resolution failed: ${e}`);
 		throw e;
 	});
 
diff --git a/packages/backend/src/remote/activitypub/kernel/announce/index.ts b/packages/backend/src/remote/activitypub/kernel/announce/index.ts
index 7a7e3b428..e32e8fef4 100644
--- a/packages/backend/src/remote/activitypub/kernel/announce/index.ts
+++ b/packages/backend/src/remote/activitypub/kernel/announce/index.ts
@@ -4,12 +4,10 @@ import Resolver from '@/remote/activitypub/resolver.js';
 import { IAnnounce, getApId } from '@/remote/activitypub/type.js';
 import announceNote from './note.js';
 
-const logger = apLogger;
-
 export default async (actor: CacheableRemoteUser, activity: IAnnounce): Promise<void> => {
 	const uri = getApId(activity);
 
-	logger.info(`Announce: ${uri}`);
+	apLogger.info(`Announce: ${uri}`);
 
 	const resolver = new Resolver();
 
diff --git a/packages/backend/src/remote/activitypub/kernel/announce/note.ts b/packages/backend/src/remote/activitypub/kernel/announce/note.ts
index 0783d1ea0..527b6b09c 100644
--- a/packages/backend/src/remote/activitypub/kernel/announce/note.ts
+++ b/packages/backend/src/remote/activitypub/kernel/announce/note.ts
@@ -11,11 +11,6 @@ import { fetchNote, resolveNote } from '@/remote/activitypub/models/note.js';
 import Resolver from '@/remote/activitypub/resolver.js';
 import { IAnnounce, getApId } from '@/remote/activitypub/type.js';
 
-const logger = apLogger;
-
-/**
- * アナウンスアクティビティを捌きます
- */
 export default async function(resolver: Resolver, actor: CacheableRemoteUser, activity: IAnnounce, targetUri: string): Promise<void> {
 	const uri = getApId(activity);
 
@@ -44,18 +39,18 @@ export default async function(resolver: Resolver, actor: CacheableRemoteUser, ac
 			// 対象が4xxならスキップ
 			if (e instanceof StatusError) {
 				if (e.isClientError) {
-					logger.warn(`Ignored announce target ${targetUri} - ${e.statusCode}`);
+					apLogger.warn(`Ignored announce target ${targetUri} - ${e.statusCode}`);
 					return;
 				}
 
-				logger.warn(`Error in announce target ${targetUri} - ${e.statusCode || e}`);
+				apLogger.warn(`Error in announce target ${targetUri} - ${e.statusCode || e}`);
 			}
 			throw e;
 		}
 
 		if (!await Notes.isVisibleForMe(renote, actor.id)) return 'skip: invalid actor for this activity';
 
-		logger.info(`Creating the (Re)Note: ${uri}`);
+		apLogger.info(`Creating the (Re)Note: ${uri}`);
 
 		const activityAudience = await parseAudience(actor, activity.to, activity.cc);
 
diff --git a/packages/backend/src/remote/activitypub/kernel/create/index.ts b/packages/backend/src/remote/activitypub/kernel/create/index.ts
index beaefb3f1..e7531d3d3 100644
--- a/packages/backend/src/remote/activitypub/kernel/create/index.ts
+++ b/packages/backend/src/remote/activitypub/kernel/create/index.ts
@@ -5,12 +5,10 @@ import { ICreate, getApId, isPost, getApType } from '../../type.js';
 import { apLogger } from '../../logger.js';
 import createNote from './note.js';
 
-const logger = apLogger;
-
 export default async (actor: CacheableRemoteUser, activity: ICreate): Promise<void> => {
 	const uri = getApId(activity);
 
-	logger.info(`Create: ${uri}`);
+	apLogger.info(`Create: ${uri}`);
 
 	// copy audiences between activity <=> object.
 	if (typeof activity.object === 'object') {
@@ -31,13 +29,13 @@ export default async (actor: CacheableRemoteUser, activity: ICreate): Promise<vo
 	const resolver = new Resolver();
 
 	const object = await resolver.resolve(activity.object).catch(e => {
-		logger.error(`Resolution failed: ${e}`);
+		apLogger.error(`Resolution failed: ${e}`);
 		throw e;
 	});
 
 	if (isPost(object)) {
 		createNote(resolver, actor, object, false, activity);
 	} else {
-		logger.warn(`Unknown type: ${getApType(object)}`);
+		apLogger.warn(`Unknown type: ${getApType(object)}`);
 	}
 };
diff --git a/packages/backend/src/remote/activitypub/kernel/delete/actor.ts b/packages/backend/src/remote/activitypub/kernel/delete/actor.ts
index ca347beb0..7d09d8fa3 100644
--- a/packages/backend/src/remote/activitypub/kernel/delete/actor.ts
+++ b/packages/backend/src/remote/activitypub/kernel/delete/actor.ts
@@ -3,10 +3,8 @@ import { CacheableRemoteUser } from '@/models/entities/user.js';
 import { Users } from '@/models/index.js';
 import { apLogger } from '@/remote/activitypub/logger.js';
 
-const logger = apLogger;
-
 export async function deleteActor(actor: CacheableRemoteUser, uri: string): Promise<string> {
-	logger.info(`Deleting the Actor: ${uri}`);
+	apLogger.info(`Deleting the Actor: ${uri}`);
 
 	if (actor.uri !== uri) {
 		return `skip: delete actor ${actor.uri} !== ${uri}`;
@@ -14,7 +12,7 @@ export async function deleteActor(actor: CacheableRemoteUser, uri: string): Prom
 
 	const user = await Users.findOneByOrFail({ id: actor.id });
 	if (user.isDeleted) {
-		logger.info('skip: already deleted');
+		apLogger.info('skip: already deleted');
 	}
 
 	const job = await createDeleteAccountJob(actor);
diff --git a/packages/backend/src/remote/activitypub/kernel/delete/note.ts b/packages/backend/src/remote/activitypub/kernel/delete/note.ts
index 6f64b66e2..9eee00732 100644
--- a/packages/backend/src/remote/activitypub/kernel/delete/note.ts
+++ b/packages/backend/src/remote/activitypub/kernel/delete/note.ts
@@ -5,10 +5,8 @@ import { deleteMessage } from '@/services/messages/delete.js';
 import DbResolver from '@/remote/activitypub/db-resolver.js';
 import { apLogger } from '@/remote/activitypub/logger.js';
 
-const logger = apLogger;
-
 export default async function(actor: CacheableRemoteUser, uri: string): Promise<string> {
-	logger.info(`Deleting the Note: ${uri}`);
+	apLogger.info(`Deleting the Note: ${uri}`);
 
 	const unlock = await getApLock(uri);
 
@@ -25,7 +23,6 @@ export default async function(actor: CacheableRemoteUser, uri: string): Promise<
 			}
 
 			await deleteMessage(message);
-
 			return 'ok: message deleted';
 		}
 
diff --git a/packages/backend/src/remote/activitypub/kernel/reject/index.ts b/packages/backend/src/remote/activitypub/kernel/reject/index.ts
index 138b7e35f..f75b8b44f 100644
--- a/packages/backend/src/remote/activitypub/kernel/reject/index.ts
+++ b/packages/backend/src/remote/activitypub/kernel/reject/index.ts
@@ -4,17 +4,15 @@ import { IReject, isFollow, getApType } from '../../type.js';
 import Resolver from '../../resolver.js';
 import rejectFollow from './follow.js';
 
-const logger = apLogger;
-
 export default async (actor: CacheableRemoteUser, activity: IReject): Promise<string> => {
 	const uri = activity.id || activity;
 
-	logger.info(`Reject: ${uri}`);
+	apLogger.info(`Reject: ${uri}`);
 
 	const resolver = new Resolver();
 
 	const object = await resolver.resolve(activity.object).catch(e => {
-		logger.error(`Resolution failed: ${e}`);
+		apLogger.error(`Resolution failed: ${e}`);
 		throw e;
 	});
 
diff --git a/packages/backend/src/remote/activitypub/kernel/undo/index.ts b/packages/backend/src/remote/activitypub/kernel/undo/index.ts
index d69dd0f47..d85a68fdc 100644
--- a/packages/backend/src/remote/activitypub/kernel/undo/index.ts
+++ b/packages/backend/src/remote/activitypub/kernel/undo/index.ts
@@ -8,8 +8,6 @@ import undoLike from './like.js';
 import undoAccept from './accept.js';
 import { undoAnnounce } from './announce.js';
 
-const logger = apLogger;
-
 export default async (actor: CacheableRemoteUser, activity: IUndo): Promise<string> => {
 	if ('actor' in activity && actor.uri !== activity.actor) {
 		throw new Error('invalid actor');
@@ -17,12 +15,11 @@ export default async (actor: CacheableRemoteUser, activity: IUndo): Promise<stri
 
 	const uri = activity.id || activity;
 
-	logger.info(`Undo: ${uri}`);
+	apLogger.info(`Undo: ${uri}`);
 
 	const resolver = new Resolver();
-
 	const object = await resolver.resolve(activity.object).catch(e => {
-		logger.error(`Resolution failed: ${e}`);
+		apLogger.error(`Resolution failed: ${e}`);
 		throw e;
 	});
 
diff --git a/packages/backend/src/remote/activitypub/models/image.ts b/packages/backend/src/remote/activitypub/models/image.ts
index 84b86a0ef..d9d533f4d 100644
--- a/packages/backend/src/remote/activitypub/models/image.ts
+++ b/packages/backend/src/remote/activitypub/models/image.ts
@@ -8,8 +8,6 @@ import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits.js';
 import Resolver from '../resolver.js';
 import { apLogger } from '../logger.js';
 
-const logger = apLogger;
-
 /**
  * Imageを作成します。
  */
@@ -25,7 +23,7 @@ export async function createImage(actor: CacheableRemoteUser, value: any): Promi
 		throw new Error('invalid image: url not privided');
 	}
 
-	logger.info(`Creating the Image: ${image.url}`);
+	apLogger.info(`Creating the Image: ${image.url}`);
 
 	const instance = await fetchMeta();
 
diff --git a/packages/backend/src/remote/activitypub/models/note.ts b/packages/backend/src/remote/activitypub/models/note.ts
index c63684809..528d1b2db 100644
--- a/packages/backend/src/remote/activitypub/models/note.ts
+++ b/packages/backend/src/remote/activitypub/models/note.ts
@@ -28,8 +28,6 @@ import { extractApHashtags } from './tag.js';
 import { extractPollFromQuestion } from './question.js';
 import { extractApMentions } from './mention.js';
 
-const logger = apLogger;
-
 export function validateNote(object: any, uri: string) {
 	const expectHost = extractDbHost(uri);
 
@@ -71,7 +69,7 @@ export async function createNote(value: string | IObject, resolver?: Resolver =
 	const entryUri = getApId(value);
 	const err = validateNote(object, entryUri);
 	if (err) {
-		logger.error(`${err.message}`, {
+		apLogger.error(`${err.message}`, {
 			resolver: {
 				history: resolver.getHistory(),
 			},
@@ -83,9 +81,9 @@ export async function createNote(value: string | IObject, resolver?: Resolver =
 
 	const note: IPost = object;
 
-	logger.debug(`Note fetched: ${JSON.stringify(note, null, 2)}`);
+	apLogger.debug(`Note fetched: ${JSON.stringify(note, null, 2)}`);
 
-	logger.info(`Creating the Note: ${note.id}`);
+	apLogger.info(`Creating the Note: ${note.id}`);
 
 	// 投稿者をフェッチ
 	const actor = await resolvePerson(getOneApId(note.attributedTo), resolver) as CacheableRemoteUser;
@@ -129,7 +127,7 @@ export async function createNote(value: string | IObject, resolver?: Resolver =
 	const reply: Note | null = note.inReplyTo
 		? await resolveNote(note.inReplyTo, resolver).then(x => {
 			if (x == null) {
-				logger.warn('Specified inReplyTo, but nout found');
+				apLogger.warn('Specified inReplyTo, but nout found');
 				throw new Error('inReplyTo not found');
 			} else {
 				return x;
@@ -146,7 +144,7 @@ export async function createNote(value: string | IObject, resolver?: Resolver =
 				}
 			}
 
-			logger.warn(`Error in inReplyTo ${note.inReplyTo} - ${e.statusCode || e}`);
+			apLogger.warn(`Error in inReplyTo ${note.inReplyTo} - ${e.statusCode || e}`);
 			throw e;
 		})
 		: null;
@@ -210,9 +208,9 @@ export async function createNote(value: string | IObject, resolver?: Resolver =
 
 		const tryCreateVote = async (name: string, index: number): Promise<null> => {
 			if (poll.expiresAt && Date.now() > new Date(poll.expiresAt).getTime()) {
-				logger.warn(`vote to expired poll from AP: actor=${actor.username}@${actor.host}, note=${note.id}, choice=${name}`);
+				apLogger.warn(`vote to expired poll from AP: actor=${actor.username}@${actor.host}, note=${note.id}, choice=${name}`);
 			} else if (index >= 0) {
-				logger.info(`vote from AP: actor=${actor.username}@${actor.host}, note=${note.id}, choice=${name}`);
+				apLogger.info(`vote from AP: actor=${actor.username}@${actor.host}, note=${note.id}, choice=${name}`);
 				await vote(actor, reply, index);
 
 				// リモートフォロワーにUpdate配信
@@ -227,7 +225,7 @@ export async function createNote(value: string | IObject, resolver?: Resolver =
 	}
 
 	const emojis = await extractEmojis(note.tag || [], actor.host).catch(e => {
-		logger.info(`extractEmojis: ${e}`);
+		apLogger.info(`extractEmojis: ${e}`);
 		return [] as Emoji[];
 	});
 
@@ -341,7 +339,7 @@ export async function extractEmojis(tags: IObject | IObject[], idnHost: string):
 			return exists;
 		}
 
-		logger.info(`register emoji host=${host}, name=${name}`);
+		apLogger.info(`register emoji host=${host}, name=${name}`);
 
 		return await Emojis.insert({
 			id: genId(),
diff --git a/packages/backend/src/remote/activitypub/models/person.ts b/packages/backend/src/remote/activitypub/models/person.ts
index f5bb0f280..cf13c1cec 100644
--- a/packages/backend/src/remote/activitypub/models/person.ts
+++ b/packages/backend/src/remote/activitypub/models/person.ts
@@ -32,8 +32,6 @@ import { extractApHashtags } from './tag.js';
 import { resolveNote, extractEmojis } from './note.js';
 import { resolveImage } from './image.js';
 
-const logger = apLogger;
-
 const nameLength = 128;
 const summaryLength = 2048;
 
@@ -145,7 +143,7 @@ export async function createPerson(uri: string, resolver?: Resolver = new Resolv
 
 	const person = validateActor(object, uri);
 
-	logger.info(`Creating the Person: ${person.id}`);
+	apLogger.info(`Creating the Person: ${person.id}`);
 
 	const host = toPuny(new URL(object.id).hostname);
 
@@ -217,7 +215,7 @@ export async function createPerson(uri: string, resolver?: Resolver = new Resolv
 				throw new Error('already registered');
 			}
 		} else {
-			logger.error(e instanceof Error ? e : new Error(e as string));
+			apLogger.error(e instanceof Error ? e : new Error(e as string));
 			throw e;
 		}
 	}
@@ -258,7 +256,7 @@ export async function createPerson(uri: string, resolver?: Resolver = new Resolv
 
 	//#region カスタム絵文字取得
 	const emojis = await extractEmojis(person.tag || [], host).catch(e => {
-		logger.info(`extractEmojis: ${e}`);
+		apLogger.info(`extractEmojis: ${e}`);
 		return [] as Emoji[];
 	});
 
@@ -269,7 +267,7 @@ export async function createPerson(uri: string, resolver?: Resolver = new Resolv
 	});
 	//#endregion
 
-	await updateFeatured(user!.id, resolver).catch(err => logger.error(err));
+	await updateFeatured(user!.id, resolver).catch(err => apLogger.error(err));
 
 	return user!;
 }
@@ -301,7 +299,7 @@ export async function updatePerson(uri: string, resolver?: Resolver = new Resolv
 
 	const person = validateActor(object, uri);
 
-	logger.info(`Updating the Person: ${person.id}`);
+	apLogger.info(`Updating the Person: ${person.id}`);
 
 	// アバターとヘッダー画像をフェッチ
 	const [avatar, banner] = await Promise.all([
@@ -315,7 +313,7 @@ export async function updatePerson(uri: string, resolver?: Resolver = new Resolv
 
 	// カスタム絵文字取得
 	const emojis = await extractEmojis(person.tag || [], exist.host).catch(e => {
-		logger.info(`extractEmojis: ${e}`);
+		apLogger.info(`extractEmojis: ${e}`);
 		return [] as Emoji[];
 	});
 
@@ -380,7 +378,7 @@ export async function updatePerson(uri: string, resolver?: Resolver = new Resolv
 		followerSharedInbox: person.sharedInbox || (person.endpoints ? person.endpoints.sharedInbox : undefined),
 	});
 
-	await updateFeatured(exist.id, resolver).catch(err => logger.error(err));
+	await updateFeatured(exist.id, resolver).catch(err => apLogger.error(err));
 }
 
 /**
@@ -463,7 +461,7 @@ export async function updateFeatured(userId: User['id'], resolver?: Resolver) {
 	if (!Users.isRemoteUser(user)) return;
 	if (!user.featured) return;
 
-	logger.info(`Updating the featured: ${user.uri}`);
+	apLogger.info(`Updating the featured: ${user.uri}`);
 
 	if (resolver == null) resolver = new Resolver();