diff --git a/packages/backend/src/core/NoteCreateService.ts b/packages/backend/src/core/NoteCreateService.ts
index 4a454e79e..277875a19 100644
--- a/packages/backend/src/core/NoteCreateService.ts
+++ b/packages/backend/src/core/NoteCreateService.ts
@@ -494,11 +494,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 		// Increment notes count (user)
 		this.incNotesCountOfUser(user);
 
-		if (data.visibility === 'specified') {
-			// TODO?
-		} else {
-			this.pushToTl(note, user);
-		}
+		this.pushToTl(note, user);
 
 		this.antennaService.addNoteToAntennas(note, user);
 
@@ -861,24 +857,34 @@ export class NoteCreateService implements OnApplicationShutdown {
 			}
 		} else {
 			// TODO: キャッシュ？
-			const followings = await this.followingsRepository.find({
-				where: {
-					followeeId: user.id,
-					followerHost: IsNull(),
-					isFollowerHibernated: false,
-				},
-				select: ['followerId', 'withReplies'],
-			});
+			// eslint-disable-next-line prefer-const
+			let [followings, userListMemberships] = await Promise.all([
+				this.followingsRepository.find({
+					where: {
+						followeeId: user.id,
+						followerHost: IsNull(),
+						isFollowerHibernated: false,
+					},
+					select: ['followerId', 'withReplies'],
+				}),
+				this.userListMembershipsRepository.find({
+					where: {
+						userId: user.id,
+					},
+					select: ['userListId', 'userListUserId', 'withReplies'],
+				}),
+			]);
 
-			const userListMemberships = await this.userListMembershipsRepository.find({
-				where: {
-					userId: user.id,
-				},
-				select: ['userListId', 'withReplies'],
-			});
+			if (note.visibility === 'followers') {
+				// TODO: 重そうだから何とかしたい Set 使う？
+				userListMemberships = userListMemberships.filter(x => followings.some(f => f.followerId === x.userListUserId));
+			}
 
 			// TODO: あまりにも数が多いと redisPipeline.exec に失敗する(理由は不明)ため、3万件程度を目安に分割して実行するようにする
 			for (const following of followings) {
+				// 基本的にvisibleUserIdsには自身のidが含まれている前提であること
+				if (note.visibility === 'specified' && !note.visibleUserIds.some(v => v === following.followerId)) continue;
+
 				// 自分自身以外への返信
 				if (note.replyId && note.replyUserId !== note.userId) {
 					if (!following.withReplies) continue;
@@ -899,13 +905,13 @@ export class NoteCreateService implements OnApplicationShutdown {
 				}
 			}
 
-			// TODO
-			//if (note.visibility === 'followers') {
-			//	// TODO: 重そうだから何とかしたい Set 使う？
-			//	userLists = userLists.filter(x => followings.some(f => f.followerId === x.userListUserId));
-			//}
-
 			for (const userListMembership of userListMemberships) {
+				// ダイレクトのとき、そのリストが対象外のユーザーの場合
+				if (
+					note.visibility === 'specified' &&
+					!note.visibleUserIds.some(v => v === userListMembership.userListUserId)
+				) continue;
+
 				// 自分自身以外への返信
 				if (note.replyId && note.replyUserId !== note.userId) {
 					if (!userListMembership.withReplies) continue;
@@ -926,7 +932,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 				}
 			}
 
-			{ // 自分自身のHTL
+			if (note.visibility !== 'specified' || !note.visibleUserIds.some(v => v === user.id)) { // 自分自身のHTL
 				redisPipeline.xadd(
 					`homeTimeline:${user.id}`,
 					'MAXLEN', '~', meta.perUserHomeTimelineCacheMax.toString(),
diff --git a/packages/backend/src/server/api/endpoints/users/notes.ts b/packages/backend/src/server/api/endpoints/users/notes.ts
index d4f9186e3..5736aad5f 100644
--- a/packages/backend/src/server/api/endpoints/users/notes.ts
+++ b/packages/backend/src/server/api/endpoints/users/notes.ts
@@ -136,6 +136,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 						}
 					}
 
+					if (note.visibility === 'specified' && (!me || (me.id !== note.userId && !note.visibleUserIds.some(v => v === me.id)))) return false;
 					if (note.visibility === 'followers' && !isFollowing) return false;
 
 					return true;
diff --git a/packages/backend/test/e2e/timelines.ts b/packages/backend/test/e2e/timelines.ts
index 6de58f014..05209c902 100644
--- a/packages/backend/test/e2e/timelines.ts
+++ b/packages/backend/test/e2e/timelines.ts
@@ -3,6 +3,9 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
+// How to run:
+// pnpm jest -- e2e/timelines.ts
+
 process.env.NODE_ENV = 'test';
 process.env.FORCE_FOLLOW_REMOTE_USER_FOR_TESTING = 'true';
 
@@ -378,6 +381,104 @@ describe('Timelines', () => {
 
 			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), false);
 		});
+
+		test.concurrent('自分の visibility: specified なノートが含まれる', async () => {
+			const [alice] = await Promise.all([signup()]);
+
+			const aliceNote = await post(alice, { text: 'hi', visibility: 'specified' });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/timeline', {}, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === aliceNote.id), true);
+			assert.strictEqual(res.body.find((note: any) => note.id === aliceNote.id).text, 'hi');
+		});
+
+		test.concurrent('フォローしているユーザーの自身を visibleUserIds に指定した visibility: specified なノートが含まれる', async () => {
+			const [alice, bob] = await Promise.all([signup(), signup()]);
+
+			await api('/following/create', { userId: bob.id }, alice);
+			await sleep(1000);
+			const bobNote = await post(bob, { text: 'hi', visibility: 'specified', visibleUserIds: [alice.id] });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/timeline', {}, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), true);
+			assert.strictEqual(res.body.find((note: any) => note.id === bobNote.id).text, 'hi');
+		});
+
+		test.concurrent('フォローしていないユーザーの自身を visibleUserIds に指定した visibility: specified なノートが含まれない', async () => {
+			const [alice, bob] = await Promise.all([signup(), signup()]);
+
+			const bobNote = await post(bob, { text: 'hi', visibility: 'specified', visibleUserIds: [alice.id] });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/timeline', {}, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), false);
+		});
+
+		test.concurrent('フォローしているユーザーの自身を visibleUserIds に指定していない visibility: specified なノートが含まれない', async () => {
+			const [alice, bob, carol] = await Promise.all([signup(), signup(), signup()]);
+
+			await api('/following/create', { userId: bob.id }, alice);
+			await sleep(1000);
+			const bobNote = await post(bob, { text: 'hi', visibility: 'specified', visibleUserIds: [carol.id] });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/timeline', {}, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), false);
+		});
+
+		test.concurrent('フォローしていないユーザーからの visibility: specified なノートに返信したときの自身のノートが含まれる', async () => {
+			const [alice, bob] = await Promise.all([signup(), signup()]);
+
+			const bobNote = await post(bob, { text: 'hi', visibility: 'specified', visibleUserIds: [alice.id] });
+			const aliceNote = await post(alice, { text: 'ok', visibility: 'specified', visibleUserIds: [bob.id], replyId: bobNote.id });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/timeline', {}, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === aliceNote.id), true);
+			assert.strictEqual(res.body.find((note: any) => note.id === aliceNote.id).text, 'ok');
+		});
+
+		/* TODO
+		test.concurrent('自身の visibility: specified なノートへのフォローしていないユーザーからの返信が含まれる', async () => {
+			const [alice, bob] = await Promise.all([signup(), signup()]);
+
+			const aliceNote = await post(alice, { text: 'hi', visibility: 'specified', visibleUserIds: [bob.id] });
+			const bobNote = await post(bob, { text: 'ok', visibility: 'specified', visibleUserIds: [alice.id], replyId: aliceNote.id });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/timeline', {}, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), true);
+			assert.strictEqual(res.body.find((note: any) => note.id === bobNote.id).text, 'ok');
+		});
+		*/
+
+		// ↑の挙動が理想だけど実装が面倒かも
+		test.concurrent('自身の visibility: specified なノートへのフォローしていないユーザーからの返信が含まれない', async () => {
+			const [alice, bob] = await Promise.all([signup(), signup()]);
+
+			const aliceNote = await post(alice, { text: 'hi', visibility: 'specified', visibleUserIds: [bob.id] });
+			const bobNote = await post(bob, { text: 'ok', visibility: 'specified', visibleUserIds: [alice.id], replyId: aliceNote.id });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/timeline', {}, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), false);
+		});
 	});
 
 	describe('Local TL', () => {
@@ -630,7 +731,6 @@ describe('Timelines', () => {
 			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), true);
 		});
 
-		/* 未実装
 		test.concurrent('リスインしているフォローしていないユーザーの visibility: followers なノートが含まれない', async () => {
 			const [alice, bob] = await Promise.all([signup(), signup()]);
 
@@ -645,23 +745,6 @@ describe('Timelines', () => {
 
 			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), false);
 		});
-		*/
-
-		test.concurrent('リスインしているフォローしていないユーザーの visibility: followers なノートが含まれるが隠される', async () => {
-			const [alice, bob] = await Promise.all([signup(), signup()]);
-
-			const list = await api('/users/lists/create', { name: 'list' }, alice).then(res => res.body);
-			await api('/users/lists/push', { listId: list.id, userId: bob.id }, alice);
-			await sleep(1000);
-			const bobNote = await post(bob, { text: 'hi', visibility: 'followers' });
-
-			await waitForPushToTl();
-
-			const res = await api('/notes/user-list-timeline', { listId: list.id }, alice);
-
-			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), true);
-			assert.strictEqual(res.body.find((note: any) => note.id === bobNote.id).text, null);
-		});
 
 		test.concurrent('リスインしているフォローしていないユーザーの他人への返信が含まれない', async () => {
 			const [alice, bob, carol] = await Promise.all([signup(), signup(), signup()]);
@@ -778,6 +861,38 @@ describe('Timelines', () => {
 			assert.strictEqual(res.body.some((note: any) => note.id === bobNote1.id), false);
 			assert.strictEqual(res.body.some((note: any) => note.id === bobNote2.id), true);
 		}, 1000 * 10);
+
+		test.concurrent('リスインしているユーザーの自身宛ての visibility: specified なノートが含まれる', async () => {
+			const [alice, bob] = await Promise.all([signup(), signup()]);
+
+			const list = await api('/users/lists/create', { name: 'list' }, alice).then(res => res.body);
+			await api('/users/lists/push', { listId: list.id, userId: bob.id }, alice);
+			await sleep(1000);
+			const bobNote = await post(bob, { text: 'hi', visibility: 'specified', visibleUserIds: [alice.id] });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/user-list-timeline', { listId: list.id }, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), true);
+			assert.strictEqual(res.body.find((note: any) => note.id === bobNote.id).text, 'hi');
+		});
+
+		test.concurrent('リスインしているユーザーの自身宛てではない visibility: specified なノートが含まれない', async () => {
+			const [alice, bob, carol] = await Promise.all([signup(), signup(), signup()]);
+
+			const list = await api('/users/lists/create', { name: 'list' }, alice).then(res => res.body);
+			await api('/users/lists/push', { listId: list.id, userId: bob.id }, alice);
+			await api('/users/lists/push', { listId: list.id, userId: carol.id }, alice);
+			await sleep(1000);
+			const bobNote = await post(bob, { text: 'hi', visibility: 'specified', visibleUserIds: [carol.id] });
+
+			await waitForPushToTl();
+
+			const res = await api('/notes/user-list-timeline', { listId: list.id }, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), false);
+		});
 	});
 
 	describe('User TL', () => {
@@ -951,6 +1066,30 @@ describe('Timelines', () => {
 			assert.strictEqual(res.body.some((note: any) => note.id === bobNote2.id), true);
 			assert.strictEqual(res.body.some((note: any) => note.id === bobNote3.id), true);
 		});
+
+		test.concurrent('自身の visibility: specified なノートが含まれる', async () => {
+			const [alice] = await Promise.all([signup()]);
+
+			const aliceNote = await post(alice, { text: 'hi', visibility: 'specified' });
+
+			await waitForPushToTl();
+
+			const res = await api('/users/notes', { userId: alice.id, withReplies: true }, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === aliceNote.id), true);
+		});
+
+		test.concurrent('visibleUserIds に指定されてない visibility: specified なノートが含まれない', async () => {
+			const [alice, bob] = await Promise.all([signup(), signup()]);
+
+			const bobNote = await post(bob, { text: 'hi', visibility: 'specified' });
+
+			await waitForPushToTl();
+
+			const res = await api('/users/notes', { userId: bob.id, withReplies: true }, alice);
+
+			assert.strictEqual(res.body.some((note: any) => note.id === bobNote.id), false);
+		});
 	});
 
 	// TODO: リノートミュート済みユーザーのテスト
diff --git a/packages/shared/.eslintrc.js b/packages/shared/.eslintrc.js
index 1ecad7ab7..c578894f6 100644
--- a/packages/shared/.eslintrc.js
+++ b/packages/shared/.eslintrc.js
@@ -38,6 +38,9 @@ module.exports = {
 			'before': true,
 			'after': true,
 		}],
+		'brace-style': ['error', '1tbs', {
+			'allowSingleLine': true,
+		}],
 		'padded-blocks': ['error', 'never'],
 		/* TODO: path aliasを使わないとwarnする
 		'no-restricted-imports': ['warn', {