diff --git a/packages/backend/src/models/entities/user.ts b/packages/backend/src/models/entities/user.ts
index c76824c977..29d9a0c2ca 100644
--- a/packages/backend/src/models/entities/user.ts
+++ b/packages/backend/src/models/entities/user.ts
@@ -1,6 +1,6 @@
 import { Entity, Column, Index, OneToOne, JoinColumn, PrimaryColumn } from 'typeorm';
-import { DriveFile } from './drive-file.js';
 import { id } from '../id.js';
+import { DriveFile } from './drive-file.js';
 
 @Entity()
 @Index(['usernameLower', 'host'], { unique: true })
@@ -207,7 +207,7 @@ export class User {
 
 	@Column('boolean', {
 		default: false,
-		comment: 'Whether to show users replying to other users in the timeline'
+		comment: 'Whether to show users replying to other users in the timeline',
 	})
 	public showTimelineReplies: boolean;
 
diff --git a/packages/backend/src/models/repositories/user.ts b/packages/backend/src/models/repositories/user.ts
index 2f4b7d6787..541fbaf003 100644
--- a/packages/backend/src/models/repositories/user.ts
+++ b/packages/backend/src/models/repositories/user.ts
@@ -1,7 +1,6 @@
 import { EntityRepository, Repository, In, Not } from 'typeorm';
 import Ajv from 'ajv';
 import { User, ILocalUser, IRemoteUser } from '@/models/entities/user.js';
-import { Notes, NoteUnreads, FollowRequests, Notifications, MessagingMessages, UserNotePinings, Followings, Blockings, Mutings, UserProfiles, UserSecurityKeys, UserGroupJoinings, Pages, Announcements, AnnouncementReads, Antennas, AntennaNotes, ChannelFollowings, Instances, DriveFiles } from '../index.js';
 import config from '@/config/index.js';
 import { Packed } from '@/misc/schema.js';
 import { awaitAll, Promiseable } from '@/prelude/await-all.js';
@@ -9,8 +8,9 @@ import { populateEmojis } from '@/misc/populate-emojis.js';
 import { getAntennas } from '@/misc/antenna-cache.js';
 import { USER_ACTIVE_THRESHOLD, USER_ONLINE_THRESHOLD } from '@/const.js';
 import { Cache } from '@/misc/cache.js';
-import { Instance } from '../entities/instance.js';
 import { db } from '@/db/postgre.js';
+import { Instance } from '../entities/instance.js';
+import { Notes, NoteUnreads, FollowRequests, Notifications, MessagingMessages, UserNotePinings, Followings, Blockings, Mutings, UserProfiles, UserSecurityKeys, UserGroupJoinings, Pages, Announcements, AnnouncementReads, Antennas, AntennaNotes, ChannelFollowings, Instances, DriveFiles } from '../index.js';
 
 const userInstanceCache = new Cache<Instance | null>(1000 * 60 * 60 * 3);
 
@@ -112,7 +112,7 @@ export const UserRepository = db.getRepository(User).extend({
 		const joinings = await UserGroupJoinings.findBy({ userId: userId });
 
 		const groupQs = Promise.all(joinings.map(j => MessagingMessages.createQueryBuilder('message')
-			.where(`message.groupId = :groupId`, { groupId: j.userGroupId })
+			.where('message.groupId = :groupId', { groupId: j.userGroupId })
 			.andWhere('message.userId != :userId', { userId: userId })
 			.andWhere('NOT (:userId = ANY(message.reads))', { userId: userId })
 			.andWhere('message.createdAt > :joinedAt', { joinedAt: j.createdAt }) // 自分が加入する前の会話については、未読扱いしない
@@ -204,8 +204,18 @@ export const UserRepository = db.getRepository(User).extend({
 		);
 	},
 
-	getAvatarUrl(user: User): string {
-		// TODO: avatarIdがあるがavatarがない(JOINされてない)場合のハンドリング
+	async getAvatarUrl(user: User): Promise<string> {
+		if (user.avatar) {
+			return DriveFiles.getPublicUrl(user.avatar, true) || this.getIdenticonUrl(user.id);
+		} else if (user.avatarId) {
+			const avatar = await DriveFiles.findOneByOrFail({ id: user.avatarId });
+			return DriveFiles.getPublicUrl(avatar, true) || this.getIdenticonUrl(user.id);
+		} else {
+			return this.getIdenticonUrl(user.id);
+		}
+	},
+
+	getAvatarUrlSync(user: User): string {
 		if (user.avatar) {
 			return DriveFiles.getPublicUrl(user.avatar, true) || this.getIdenticonUrl(user.id);
 		} else {
@@ -223,7 +233,7 @@ export const UserRepository = db.getRepository(User).extend({
 		options?: {
 			detail?: D,
 			includeSecrets?: boolean,
-		}
+		},
 	): Promise<IsMeAndIsUserDetailed<ExpectsMe, D>> {
 		const opts = Object.assign({
 			detail: false,
@@ -274,7 +284,7 @@ export const UserRepository = db.getRepository(User).extend({
 			name: user.name,
 			username: user.username,
 			host: user.host,
-			avatarUrl: this.getAvatarUrl(user),
+			avatarUrl: this.getAvatarUrlSync(user),
 			avatarBlurhash: user.avatar?.blurhash || null,
 			avatarColor: null, // 後方互換性のため
 			isAdmin: user.isAdmin || falsy,
@@ -283,7 +293,7 @@ export const UserRepository = db.getRepository(User).extend({
 			isCat: user.isCat || falsy,
 			instance: user.host ? userInstanceCache.fetch(user.host,
 				() => Instances.findOneBy({ host: user.host! }),
-				v => v != null
+				v => v != null,
 			).then(instance => instance ? {
 				name: instance.name,
 				softwareName: instance.softwareName,
@@ -403,7 +413,7 @@ export const UserRepository = db.getRepository(User).extend({
 		options?: {
 			detail?: D,
 			includeSecrets?: boolean,
-		}
+		},
 	): Promise<IsUserDetailed<D>[]> {
 		return Promise.all(users.map(u => this.pack(u, me, options)));
 	},
diff --git a/packages/backend/src/server/api/common/signin.ts b/packages/backend/src/server/api/common/signin.ts
index f1dccee2ce..038fd8d96e 100644
--- a/packages/backend/src/server/api/common/signin.ts
+++ b/packages/backend/src/server/api/common/signin.ts
@@ -9,7 +9,7 @@ import { publishMainStream } from '@/services/stream.js';
 export default function(ctx: Koa.Context, user: ILocalUser, redirect = false) {
 	if (redirect) {
 		//#region Cookie
-		ctx.cookies.set('igi', user.token, {
+		ctx.cookies.set('igi', user.token!, {
 			path: '/',
 			// SEE: https://github.com/koajs/koa/issues/974
 			// When using a SSL proxy it should be configured to add the "X-Forwarded-Proto: https" header
diff --git a/packages/backend/src/server/index.ts b/packages/backend/src/server/index.ts
index d00bf8996f..c1a2a6dfff 100644
--- a/packages/backend/src/server/index.ts
+++ b/packages/backend/src/server/index.ts
@@ -10,23 +10,23 @@ import mount from 'koa-mount';
 import koaLogger from 'koa-logger';
 import * as slow from 'koa-slow';
 
-import activityPub from './activitypub.js';
-import nodeinfo from './nodeinfo.js';
-import wellKnown from './well-known.js';
+import { IsNull } from 'typeorm';
 import config from '@/config/index.js';
-import apiServer from './api/index.js';
-import fileServer from './file/index.js';
-import proxyServer from './proxy/index.js';
-import webServer from './web/index.js';
 import Logger from '@/services/logger.js';
-import { envOption } from '../env.js';
 import { UserProfiles, Users } from '@/models/index.js';
 import { genIdenticon } from '@/misc/gen-identicon.js';
 import { createTemp } from '@/misc/create-temp.js';
 import { publishMainStream } from '@/services/stream.js';
 import * as Acct from '@/misc/acct.js';
+import { envOption } from '../env.js';
+import activityPub from './activitypub.js';
+import nodeinfo from './nodeinfo.js';
+import wellKnown from './well-known.js';
+import apiServer from './api/index.js';
+import fileServer from './file/index.js';
+import proxyServer from './proxy/index.js';
+import webServer from './web/index.js';
 import { initializeStreamingServer } from './api/streaming.js';
-import { IsNull } from 'typeorm';
 
 export const serverLogger = new Logger('server', 'gray', false);
 
@@ -81,7 +81,7 @@ router.get('/avatar/@:acct', async ctx => {
 	});
 
 	if (user) {
-		ctx.redirect(Users.getAvatarUrl(user));
+		ctx.redirect(Users.getAvatarUrlSync(user));
 	} else {
 		ctx.redirect('/static-assets/user-unknown.png');
 	}
diff --git a/packages/backend/src/server/web/feed.ts b/packages/backend/src/server/web/feed.ts
index eba8dc58d4..4abe2885cf 100644
--- a/packages/backend/src/server/web/feed.ts
+++ b/packages/backend/src/server/web/feed.ts
@@ -1,8 +1,8 @@
 import { Feed } from 'feed';
+import { In, IsNull } from 'typeorm';
 import config from '@/config/index.js';
 import { User } from '@/models/entities/user.js';
-import { Notes, DriveFiles, UserProfiles } from '@/models/index.js';
-import { In, IsNull } from 'typeorm';
+import { Notes, DriveFiles, UserProfiles, Users } from '@/models/index.js';
 
 export default async function(user: User) {
 	const author = {
@@ -29,7 +29,7 @@ export default async function(user: User) {
 		generator: 'Misskey',
 		description: `${user.notesCount} Notes, ${profile.ffVisibility === 'public' ? user.followingCount : '?'} Following, ${profile.ffVisibility === 'public' ? user.followersCount : '?'} Followers${profile.description ? ` · ${profile.description}` : ''}`,
 		link: author.link,
-		image: user.avatarUrl ? user.avatarUrl : undefined,
+		image: await Users.getAvatarUrl(user),
 		feedLinks: {
 			json: `${author.link}.json`,
 			atom: `${author.link}.atom`,
diff --git a/packages/backend/src/server/web/index.ts b/packages/backend/src/server/web/index.ts
index 48bf6f7338..34d56cfd0c 100644
--- a/packages/backend/src/server/web/index.ts
+++ b/packages/backend/src/server/web/index.ts
@@ -11,20 +11,20 @@ import send from 'koa-send';
 import favicon from 'koa-favicon';
 import views from 'koa-views';
 import { createBullBoard } from '@bull-board/api';
-import { BullAdapter  } from '@bull-board/api/bullAdapter.js';
+import { BullAdapter } from '@bull-board/api/bullAdapter.js';
 import { KoaAdapter } from '@bull-board/koa';
 
-import packFeed from './feed.js';
+import { IsNull } from 'typeorm';
 import { fetchMeta } from '@/misc/fetch-meta.js';
-import { genOpenapiSpec } from '../api/openapi/gen-spec.js';
 import config from '@/config/index.js';
 import { Users, Notes, UserProfiles, Pages, Channels, Clips, GalleryPosts } from '@/models/index.js';
 import * as Acct from '@/misc/acct.js';
 import { getNoteSummary } from '@/misc/get-note-summary.js';
+import { queues } from '@/queue/queues.js';
+import { genOpenapiSpec } from '../api/openapi/gen-spec.js';
 import { urlPreviewHandler } from './url-preview.js';
 import { manifestHandler } from './manifest.js';
-import { queues } from '@/queue/queues.js';
-import { IsNull } from 'typeorm';
+import packFeed from './feed.js';
 
 const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
@@ -127,7 +127,7 @@ router.get('/twemoji/(.*)', async ctx => {
 		return;
 	}
 
-	ctx.set('Content-Security-Policy', `default-src 'none'; style-src 'unsafe-inline'`);
+	ctx.set('Content-Security-Policy', 'default-src \'none\'; style-src \'unsafe-inline\'');
 
 	await send(ctx as any, path, {
 		root: `${_dirname}/../../../node_modules/@discordapp/twemoji/dist/svg/`,
@@ -235,6 +235,7 @@ router.get(['/@:user', '/@:user/:sub'], async (ctx, next) => {
 
 		await ctx.render('user', {
 			user, profile, me,
+			avatarUrl: await Users.getAvatarUrl(user),
 			sub: ctx.params.sub,
 			instanceName: meta.name || 'Misskey',
 			icon: meta.iconUrl,
@@ -274,6 +275,7 @@ router.get('/notes/:note', async (ctx, next) => {
 		await ctx.render('note', {
 			note: _note,
 			profile,
+			avatarUrl: await Users.getAvatarUrl(await Users.findOneByOrFail({ id: note.userId })),
 			// TODO: Let locale changeable by instance setting
 			summary: getNoteSummary(_note),
 			instanceName: meta.name || 'Misskey',
@@ -315,6 +317,7 @@ router.get('/@:user/pages/:page', async (ctx, next) => {
 		await ctx.render('page', {
 			page: _page,
 			profile,
+			avatarUrl: await Users.getAvatarUrl(await Users.findOneByOrFail({ id: page.userId })),
 			instanceName: meta.name || 'Misskey',
 			icon: meta.iconUrl,
 			themeColor: meta.themeColor,
@@ -346,6 +349,7 @@ router.get('/clips/:clip', async (ctx, next) => {
 		await ctx.render('clip', {
 			clip: _clip,
 			profile,
+			avatarUrl: await Users.getAvatarUrl(await Users.findOneByOrFail({ id: clip.userId })),
 			instanceName: meta.name || 'Misskey',
 			icon: meta.iconUrl,
 			themeColor: meta.themeColor,
@@ -370,6 +374,7 @@ router.get('/gallery/:post', async (ctx, next) => {
 		await ctx.render('gallery-post', {
 			post: _post,
 			profile,
+			avatarUrl: await Users.getAvatarUrl(await Users.findOneByOrFail({ id: post.userId })),
 			instanceName: meta.name || 'Misskey',
 			icon: meta.iconUrl,
 			themeColor: meta.themeColor,
@@ -434,7 +439,7 @@ router.get('/cli', async ctx => {
 	});
 });
 
-const override = (source: string, target: string, depth: number = 0) =>
+const override = (source: string, target: string, depth = 0) =>
 	[, ...target.split('/').filter(x => x), ...source.split('/').filter(x => x).splice(depth)].join('/');
 
 router.get('/flush', async ctx => {
diff --git a/packages/backend/src/server/web/views/clip.pug b/packages/backend/src/server/web/views/clip.pug
index 7a84d50f6c..4c692bf59b 100644
--- a/packages/backend/src/server/web/views/clip.pug
+++ b/packages/backend/src/server/web/views/clip.pug
@@ -16,7 +16,7 @@ block og
 	meta(property='og:title'       content= title)
 	meta(property='og:description' content= clip.description)
 	meta(property='og:url'         content= url)
-	meta(property='og:image'       content= user.avatarUrl)
+	meta(property='og:image'       content= avatarUrl)
 
 block meta
 	if profile.noCrawle
diff --git a/packages/backend/src/server/web/views/note.pug b/packages/backend/src/server/web/views/note.pug
index 34b03f9833..65696ea138 100644
--- a/packages/backend/src/server/web/views/note.pug
+++ b/packages/backend/src/server/web/views/note.pug
@@ -17,7 +17,7 @@ block og
 	meta(property='og:title'       content= title)
 	meta(property='og:description' content= summary)
 	meta(property='og:url'         content= url)
-	meta(property='og:image'       content= user.avatarUrl)
+	meta(property='og:image'       content= avatarUrl)
 
 block meta
 	if user.host || isRenote || profile.noCrawle
diff --git a/packages/backend/src/server/web/views/page.pug b/packages/backend/src/server/web/views/page.pug
index b6c9548025..4219e76a52 100644
--- a/packages/backend/src/server/web/views/page.pug
+++ b/packages/backend/src/server/web/views/page.pug
@@ -16,7 +16,7 @@ block og
 	meta(property='og:title'       content= title)
 	meta(property='og:description' content= page.summary)
 	meta(property='og:url'         content= url)
-	meta(property='og:image'       content= page.eyeCatchingImage ? page.eyeCatchingImage.thumbnailUrl : user.avatarUrl)
+	meta(property='og:image'       content= page.eyeCatchingImage ? page.eyeCatchingImage.thumbnailUrl : avatarUrl)
 
 block meta
 	if profile.noCrawle
diff --git a/packages/backend/src/server/web/views/user.pug b/packages/backend/src/server/web/views/user.pug
index 2adec0f889..119993fdb5 100644
--- a/packages/backend/src/server/web/views/user.pug
+++ b/packages/backend/src/server/web/views/user.pug
@@ -3,7 +3,6 @@ extends ./base
 block vars
 	- const title = user.name ? `${user.name} (@${user.username})` : `@${user.username}`;
 	- const url = `${config.url}/@${(user.host ? `${user.username}@${user.host}` : user.username)}`;
-	- const img = user.avatarUrl || null;
 
 block title
 	= `${title} | ${instanceName}`
@@ -16,7 +15,7 @@ block og
 	meta(property='og:title'       content= title)
 	meta(property='og:description' content= profile.description)
 	meta(property='og:url'         content= url)
-	meta(property='og:image'       content= img)
+	meta(property='og:image'       content= avatarUrl)
 
 block meta
 	if user.host || profile.noCrawle