diff --git a/packages/backend/src/core/AnnouncementService.ts b/packages/backend/src/core/AnnouncementService.ts
index a6b411ad22..64e8ae758c 100644
--- a/packages/backend/src/core/AnnouncementService.ts
+++ b/packages/backend/src/core/AnnouncementService.ts
@@ -7,7 +7,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import { Brackets } from 'typeorm';
 import { DI } from '@/di-symbols.js';
 import type { MiUser } from '@/models/entities/User.js';
-import type { AnnouncementReadsRepository, AnnouncementsRepository, Announcement, AnnouncementRead } from '@/models/index.js';
+import type { AnnouncementReadsRepository, AnnouncementsRepository, MiAnnouncement, MiAnnouncementRead } from '@/models/index.js';
 import { bindThis } from '@/decorators.js';
 import { Packed } from '@/misc/json-schema.js';
 import { IdService } from '@/core/IdService.js';
@@ -28,14 +28,14 @@ export class AnnouncementService {
 	}
 
 	@bindThis
-	public async getReads(userId: MiUser['id']): Promise<AnnouncementRead[]> {
+	public async getReads(userId: MiUser['id']): Promise<MiAnnouncementRead[]> {
 		return this.announcementReadsRepository.findBy({
 			userId: userId,
 		});
 	}
 
 	@bindThis
-	public async getUnreadAnnouncements(user: MiUser): Promise<Announcement[]> {
+	public async getUnreadAnnouncements(user: MiUser): Promise<MiAnnouncement[]> {
 		const readsQuery = this.announcementReadsRepository.createQueryBuilder('read')
 			.select('read.announcementId')
 			.where('read.userId = :userId', { userId: user.id });
@@ -58,7 +58,7 @@ export class AnnouncementService {
 	}
 
 	@bindThis
-	public async create(values: Partial<Announcement>): Promise<{ raw: Announcement; packed: Packed<'Announcement'> }> {
+	public async create(values: Partial<MiAnnouncement>): Promise<{ raw: MiAnnouncement; packed: Packed<'Announcement'> }> {
 		const announcement = await this.announcementsRepository.insert({
 			id: this.idService.genId(),
 			createdAt: new Date(),
@@ -92,7 +92,7 @@ export class AnnouncementService {
 	}
 
 	@bindThis
-	public async read(user: MiUser, announcementId: Announcement['id']): Promise<void> {
+	public async read(user: MiUser, announcementId: MiAnnouncement['id']): Promise<void> {
 		try {
 			await this.announcementReadsRepository.insert({
 				id: this.idService.genId(),
@@ -111,10 +111,10 @@ export class AnnouncementService {
 
 	@bindThis
 	public async packMany(
-		announcements: Announcement[],
+		announcements: MiAnnouncement[],
 		me?: { id: MiUser['id'] } | null | undefined,
 		options?: {
-			reads?: AnnouncementRead[];
+			reads?: MiAnnouncementRead[];
 		},
 	): Promise<Packed<'Announcement'>[]> {
 		const reads = me ? (options?.reads ?? await this.getReads(me.id)) : [];
diff --git a/packages/backend/src/core/CacheService.ts b/packages/backend/src/core/CacheService.ts
index 745118d9db..15be5f398c 100644
--- a/packages/backend/src/core/CacheService.ts
+++ b/packages/backend/src/core/CacheService.ts
@@ -5,7 +5,7 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
-import type { BlockingsRepository, ChannelFollowingsRepository, FollowingsRepository, MutingsRepository, RenoteMutingsRepository, UserProfile, UserProfilesRepository, UsersRepository } from '@/models/index.js';
+import type { BlockingsRepository, ChannelFollowingsRepository, FollowingsRepository, MutingsRepository, RenoteMutingsRepository, MiUserProfile, UserProfilesRepository, UsersRepository } from '@/models/index.js';
 import { MemoryKVCache, RedisKVCache } from '@/misc/cache.js';
 import type { MiLocalUser, MiUser } from '@/models/entities/User.js';
 import { DI } from '@/di-symbols.js';
@@ -20,7 +20,7 @@ export class CacheService implements OnApplicationShutdown {
 	public localUserByNativeTokenCache: MemoryKVCache<MiLocalUser | null, string | null>;
 	public localUserByIdCache: MemoryKVCache<MiLocalUser>;
 	public uriPersonCache: MemoryKVCache<MiUser | null, string | null>;
-	public userProfileCache: RedisKVCache<UserProfile>;
+	public userProfileCache: RedisKVCache<MiUserProfile>;
 	public userMutingsCache: RedisKVCache<Set<string>>;
 	public userBlockingCache: RedisKVCache<Set<string>>;
 	public userBlockedCache: RedisKVCache<Set<string>>; // NOTE: 「被」Blockキャッシュ
@@ -96,7 +96,7 @@ export class CacheService implements OnApplicationShutdown {
 			fromMapConverter: id => id === null ? null : userByIdCache.get(id),
 		});
 
-		this.userProfileCache = new RedisKVCache<UserProfile>(this.redisClient, 'userProfile', {
+		this.userProfileCache = new RedisKVCache<MiUserProfile>(this.redisClient, 'userProfile', {
 			lifetime: 1000 * 60 * 30, // 30m
 			memoryCacheLifetime: 1000 * 60, // 1m
 			fetcher: (key) => this.userProfilesRepository.findOneByOrFail({ userId: key }),
diff --git a/packages/backend/src/core/CustomEmojiService.ts b/packages/backend/src/core/CustomEmojiService.ts
index eb909f81cd..8fd993345b 100644
--- a/packages/backend/src/core/CustomEmojiService.ts
+++ b/packages/backend/src/core/CustomEmojiService.ts
@@ -12,7 +12,7 @@ import { EmojiEntityService } from '@/core/entities/EmojiEntityService.js';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
 import type { MiDriveFile } from '@/models/entities/DriveFile.js';
 import type { MiEmoji } from '@/models/entities/Emoji.js';
-import type { EmojisRepository, Role } from '@/models/index.js';
+import type { EmojisRepository, MiRole } from '@/models/index.js';
 import { bindThis } from '@/decorators.js';
 import { MemoryKVCache, RedisSingleCache } from '@/misc/cache.js';
 import { UtilityService } from '@/core/UtilityService.js';
@@ -65,7 +65,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
 		license: string | null;
 		isSensitive: boolean;
 		localOnly: boolean;
-		roleIdsThatCanBeUsedThisEmojiAsReaction: Role['id'][];
+		roleIdsThatCanBeUsedThisEmojiAsReaction: MiRole['id'][];
 	}): Promise<MiEmoji> {
 		const emoji = await this.emojisRepository.insert({
 			id: this.idService.genId(),
@@ -103,7 +103,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
 		license?: string | null;
 		isSensitive?: boolean;
 		localOnly?: boolean;
-		roleIdsThatCanBeUsedThisEmojiAsReaction?: Role['id'][];
+		roleIdsThatCanBeUsedThisEmojiAsReaction?: MiRole['id'][];
 	}): Promise<void> {
 		const emoji = await this.emojisRepository.findOneByOrFail({ id: id });
 		const sameNameEmoji = await this.emojisRepository.findOneBy({ name: data.name, host: IsNull() });
diff --git a/packages/backend/src/core/GlobalEventService.ts b/packages/backend/src/core/GlobalEventService.ts
index e4b0ad9dc6..224eb3c599 100644
--- a/packages/backend/src/core/GlobalEventService.ts
+++ b/packages/backend/src/core/GlobalEventService.ts
@@ -25,7 +25,7 @@ import type { Packed } from '@/misc/json-schema.js';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
 import { bindThis } from '@/decorators.js';
-import { Role } from '@/models/index.js';
+import { MiRole } from '@/models/index.js';
 
 @Injectable()
 export class GlobalEventService {
@@ -89,7 +89,7 @@ export class GlobalEventService {
 	}
 
 	@bindThis
-	public publishRoleTimelineStream<K extends keyof RoleTimelineStreamTypes>(roleId: Role['id'], type: K, value?: RoleTimelineStreamTypes[K]): void {
+	public publishRoleTimelineStream<K extends keyof RoleTimelineStreamTypes>(roleId: MiRole['id'], type: K, value?: RoleTimelineStreamTypes[K]): void {
 		this.publish(`roleTimelineStream:${roleId}`, type, typeof value === 'undefined' ? null : value);
 	}
 
diff --git a/packages/backend/src/core/PollService.ts b/packages/backend/src/core/PollService.ts
index 4f67d2f938..551c779769 100644
--- a/packages/backend/src/core/PollService.ts
+++ b/packages/backend/src/core/PollService.ts
@@ -5,7 +5,7 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
-import type { NotesRepository, UsersRepository, PollsRepository, PollVotesRepository, User } from '@/models/index.js';
+import type { NotesRepository, UsersRepository, PollsRepository, PollVotesRepository, MiUser } from '@/models/index.js';
 import type { MiNote } from '@/models/entities/Note.js';
 import { RelayService } from '@/core/RelayService.js';
 import { IdService } from '@/core/IdService.js';
@@ -42,7 +42,7 @@ export class PollService {
 	}
 
 	@bindThis
-	public async vote(user: User, note: MiNote, choice: number) {
+	public async vote(user: MiUser, note: MiNote, choice: number) {
 		const poll = await this.pollsRepository.findOneBy({ noteId: note.id });
 
 		if (poll == null) throw new Error('poll not found');
diff --git a/packages/backend/src/core/PushNotificationService.ts b/packages/backend/src/core/PushNotificationService.ts
index d5a727b3e4..93928e3cd7 100644
--- a/packages/backend/src/core/PushNotificationService.ts
+++ b/packages/backend/src/core/PushNotificationService.ts
@@ -10,7 +10,7 @@ import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
 import type { Packed } from '@/misc/json-schema.js';
 import { getNoteSummary } from '@/misc/get-note-summary.js';
-import type { SwSubscription, SwSubscriptionsRepository } from '@/models/index.js';
+import type { MiSwSubscription, SwSubscriptionsRepository } from '@/models/index.js';
 import { MetaService } from '@/core/MetaService.js';
 import { bindThis } from '@/decorators.js';
 import { RedisKVCache } from '@/misc/cache.js';
@@ -48,7 +48,7 @@ function truncateBody<T extends keyof PushNotificationsTypes>(type: T, body: Pus
 
 @Injectable()
 export class PushNotificationService implements OnApplicationShutdown {
-	private subscriptionsCache: RedisKVCache<SwSubscription[]>;
+	private subscriptionsCache: RedisKVCache<MiSwSubscription[]>;
 
 	constructor(
 		@Inject(DI.config)
@@ -62,7 +62,7 @@ export class PushNotificationService implements OnApplicationShutdown {
 
 		private metaService: MetaService,
 	) {
-		this.subscriptionsCache = new RedisKVCache<SwSubscription[]>(this.redisClient, 'userSwSubscriptions', {
+		this.subscriptionsCache = new RedisKVCache<MiSwSubscription[]>(this.redisClient, 'userSwSubscriptions', {
 			lifetime: 1000 * 60 * 60 * 1, // 1h
 			memoryCacheLifetime: 1000 * 60 * 3, // 3m
 			fetcher: (key) => this.swSubscriptionsRepository.findBy({ userId: key }),
diff --git a/packages/backend/src/core/RoleService.ts b/packages/backend/src/core/RoleService.ts
index a8d1be25a0..f755f3ecfb 100644
--- a/packages/backend/src/core/RoleService.ts
+++ b/packages/backend/src/core/RoleService.ts
@@ -6,7 +6,7 @@
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
 import { In } from 'typeorm';
-import type { Role, RoleAssignment, RoleAssignmentsRepository, RolesRepository, UsersRepository } from '@/models/index.js';
+import type { MiRole, MiRoleAssignment, RoleAssignmentsRepository, RolesRepository, UsersRepository } from '@/models/index.js';
 import { MemoryKVCache, MemorySingleCache } from '@/misc/cache.js';
 import type { MiUser } from '@/models/entities/User.js';
 import { DI } from '@/di-symbols.js';
@@ -71,8 +71,8 @@ export const DEFAULT_POLICIES: RolePolicies = {
 
 @Injectable()
 export class RoleService implements OnApplicationShutdown {
-	private rolesCache: MemorySingleCache<Role[]>;
-	private roleAssignmentByUserIdCache: MemoryKVCache<RoleAssignment[]>;
+	private rolesCache: MemorySingleCache<MiRole[]>;
+	private roleAssignmentByUserIdCache: MemoryKVCache<MiRoleAssignment[]>;
 
 	public static AlreadyAssignedError = class extends Error {};
 	public static NotAssignedError = class extends Error {};
@@ -101,8 +101,8 @@ export class RoleService implements OnApplicationShutdown {
 	) {
 		//this.onMessage = this.onMessage.bind(this);
 
-		this.rolesCache = new MemorySingleCache<Role[]>(1000 * 60 * 60 * 1);
-		this.roleAssignmentByUserIdCache = new MemoryKVCache<RoleAssignment[]>(1000 * 60 * 60 * 1);
+		this.rolesCache = new MemorySingleCache<MiRole[]>(1000 * 60 * 60 * 1);
+		this.roleAssignmentByUserIdCache = new MemoryKVCache<MiRoleAssignment[]>(1000 * 60 * 60 * 1);
 
 		this.redisForSub.on('message', this.onMessage);
 	}
@@ -326,7 +326,7 @@ export class RoleService implements OnApplicationShutdown {
 	}
 
 	@bindThis
-	public async isExplorable(role: { id: Role['id']} | null): Promise<boolean> {
+	public async isExplorable(role: { id: MiRole['id']} | null): Promise<boolean> {
 		if (role == null) return false;
 		const check = await this.rolesRepository.findOneBy({ id: role.id });
 		if (check == null) return false;
@@ -374,7 +374,7 @@ export class RoleService implements OnApplicationShutdown {
 	}
 
 	@bindThis
-	public async assign(userId: MiUser['id'], roleId: Role['id'], expiresAt: Date | null = null): Promise<void> {
+	public async assign(userId: MiUser['id'], roleId: MiRole['id'], expiresAt: Date | null = null): Promise<void> {
 		const now = new Date();
 
 		const existing = await this.roleAssignmentsRepository.findOneBy({
@@ -409,7 +409,7 @@ export class RoleService implements OnApplicationShutdown {
 	}
 
 	@bindThis
-	public async unassign(userId: MiUser['id'], roleId: Role['id']): Promise<void> {
+	public async unassign(userId: MiUser['id'], roleId: MiRole['id']): Promise<void> {
 		const now = new Date();
 
 		const existing = await this.roleAssignmentsRepository.findOneBy({ roleId, userId });
diff --git a/packages/backend/src/core/SearchService.ts b/packages/backend/src/core/SearchService.ts
index 6295cbb9c0..ce80744c6d 100644
--- a/packages/backend/src/core/SearchService.ts
+++ b/packages/backend/src/core/SearchService.ts
@@ -9,7 +9,7 @@ import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
 import { bindThis } from '@/decorators.js';
 import { MiNote } from '@/models/entities/Note.js';
-import { User } from '@/models/index.js';
+import { MiUser } from '@/models/index.js';
 import type { NotesRepository } from '@/models/index.js';
 import { sqlLikeEscape } from '@/misc/sql-like-escape.js';
 import { QueryService } from '@/core/QueryService.js';
@@ -150,7 +150,7 @@ export class SearchService {
 	}
 
 	@bindThis
-	public async searchNote(q: string, me: User | null, opts: {
+	public async searchNote(q: string, me: MiUser | null, opts: {
 		userId?: MiNote['userId'] | null;
 		channelId?: MiNote['channelId'] | null;
 		host?: string | null;
diff --git a/packages/backend/src/core/UserMutingService.ts b/packages/backend/src/core/UserMutingService.ts
index 1f0cc14695..1f0b2c215b 100644
--- a/packages/backend/src/core/UserMutingService.ts
+++ b/packages/backend/src/core/UserMutingService.ts
@@ -5,7 +5,7 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { In } from 'typeorm';
-import type { MutingsRepository, Muting } from '@/models/index.js';
+import type { MutingsRepository, MiMuting } from '@/models/index.js';
 import { IdService } from '@/core/IdService.js';
 import type { MiUser } from '@/models/entities/User.js';
 import { DI } from '@/di-symbols.js';
@@ -37,7 +37,7 @@ export class UserMutingService {
 	}
 
 	@bindThis
-	public async unmute(mutings: Muting[]): Promise<void> {
+	public async unmute(mutings: MiMuting[]): Promise<void> {
 		if (mutings.length === 0) return;
 
 		await this.mutingsRepository.delete({
diff --git a/packages/backend/src/core/activitypub/models/ApMentionService.ts b/packages/backend/src/core/activitypub/models/ApMentionService.ts
index ead2b38c22..f4045301de 100644
--- a/packages/backend/src/core/activitypub/models/ApMentionService.ts
+++ b/packages/backend/src/core/activitypub/models/ApMentionService.ts
@@ -5,7 +5,7 @@
 
 import { Injectable } from '@nestjs/common';
 import promiseLimit from 'promise-limit';
-import type { User } from '@/models/index.js';
+import type { MiUser } from '@/models/index.js';
 import { toArray, unique } from '@/misc/prelude/array.js';
 import { bindThis } from '@/decorators.js';
 import { isMention } from '../type.js';
@@ -21,13 +21,13 @@ export class ApMentionService {
 	}
 
 	@bindThis
-	public async extractApMentions(tags: IObject | IObject[] | null | undefined, resolver: Resolver): Promise<User[]> {
+	public async extractApMentions(tags: IObject | IObject[] | null | undefined, resolver: Resolver): Promise<MiUser[]> {
 		const hrefs = unique(this.extractApMentionObjects(tags).map(x => x.href));
 
-		const limit = promiseLimit<User | null>(2);
+		const limit = promiseLimit<MiUser | null>(2);
 		const mentionedUsers = (await Promise.all(
 			hrefs.map(x => limit(() => this.apPersonService.resolvePerson(x, resolver).catch(() => null))),
-		)).filter((x): x is User => x != null);
+		)).filter((x): x is MiUser => x != null);
 
 		return mentionedUsers;
 	}
diff --git a/packages/backend/src/core/entities/ClipEntityService.ts b/packages/backend/src/core/entities/ClipEntityService.ts
index 24d6814322..63619ac9d3 100644
--- a/packages/backend/src/core/entities/ClipEntityService.ts
+++ b/packages/backend/src/core/entities/ClipEntityService.ts
@@ -5,7 +5,7 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
-import type { ClipFavoritesRepository, ClipsRepository, User } from '@/models/index.js';
+import type { ClipFavoritesRepository, ClipsRepository, MiUser } from '@/models/index.js';
 import { awaitAll } from '@/misc/prelude/await-all.js';
 import type { Packed } from '@/misc/json-schema.js';
 import type { } from '@/models/entities/Blocking.js';
@@ -29,7 +29,7 @@ export class ClipEntityService {
 	@bindThis
 	public async pack(
 		src: MiClip['id'] | MiClip,
-		me?: { id: User['id'] } | null | undefined,
+		me?: { id: MiUser['id'] } | null | undefined,
 	): Promise<Packed<'Clip'>> {
 		const meId = me ? me.id : null;
 		const clip = typeof src === 'object' ? src : await this.clipsRepository.findOneByOrFail({ id: src });
@@ -51,7 +51,7 @@ export class ClipEntityService {
 	@bindThis
 	public packMany(
 		clips: MiClip[],
-		me?: { id: User['id'] } | null | undefined,
+		me?: { id: MiUser['id'] } | null | undefined,
 	) {
 		return Promise.all(clips.map(x => this.pack(x, me)));
 	}
diff --git a/packages/backend/src/core/entities/DriveFileEntityService.ts b/packages/backend/src/core/entities/DriveFileEntityService.ts
index 32861eaede..a09de58b4f 100644
--- a/packages/backend/src/core/entities/DriveFileEntityService.ts
+++ b/packages/backend/src/core/entities/DriveFileEntityService.ts
@@ -14,6 +14,9 @@ import type { MiUser } from '@/models/entities/User.js';
 import type { MiDriveFile } from '@/models/entities/DriveFile.js';
 import { appendQuery, query } from '@/misc/prelude/url.js';
 import { deepClone } from '@/misc/clone.js';
+import { bindThis } from '@/decorators.js';
+import { isMimeImage } from '@/misc/is-mime-image.js';
+import { isNotNull } from '@/misc/is-not-null.js';
 import { UtilityService } from '../UtilityService.js';
 import { VideoProcessingService } from '../VideoProcessingService.js';
 import { UserEntityService } from './UserEntityService.js';
@@ -24,9 +27,6 @@ type PackOptions = {
 	self?: boolean,
 	withUser?: boolean,
 };
-import { bindThis } from '@/decorators.js';
-import { isMimeImage } from '@/misc/is-mime-image.js';
-import { isNotNull } from '@/misc/is-not-null.js';
 
 @Injectable()
 export class DriveFileEntityService {