diff --git a/src/client/account.ts b/src/client/account.ts
index e6ee8613d2..85fbca2bd7 100644
--- a/src/client/account.ts
+++ b/src/client/account.ts
@@ -1,3 +1,4 @@
+import { get, set } from 'idb-keyval';
 import { reactive } from 'vue';
 import { apiUrl } from '@/config';
 import { waiting } from '@/os';
@@ -14,22 +15,44 @@ const data = localStorage.getItem('account');
 // TODO: 外部からはreadonlyに
 export const $i = data ? reactive(JSON.parse(data) as Account) : null;
 
-export function signout() {
+export async function signout() {
 	localStorage.removeItem('account');
+
+	//#region Remove account
+	const accounts = await getAccounts();
+	accounts.splice(accounts.findIndex(x => x.id === $i.id), 1)
+	set('accounts', JSON.stringify(accounts));
+	//#endregion
+
+	//#region Remove push notification registration
+	await navigator.serviceWorker.ready.then(async r => {
+		const push = await r.pushManager.getSubscription()
+		if (!push) return;
+		return fetch(`${apiUrl}/sw/unregister`, {
+			method: 'POST',
+			body: JSON.stringify({
+				i: $i.token,
+				endpoint: push.endpoint,
+			}),
+		});
+	});
+	//#endregion
+
 	document.cookie = `igi=; path=/`;
-	location.href = '/';
+	
+	if (accounts.length > 0) login(accounts[0].token);
+	else location.href = '/';
 }
 
-export function getAccounts() {
-	const accountsData = localStorage.getItem('accounts');
-	const accounts: { id: Account['id'], token: Account['token'] }[] = accountsData ? JSON.parse(accountsData) : [];
+export async function getAccounts() {
+	const accounts: { id: Account['id'], token: Account['token'] }[] = (await get('accounts')) || [];
 	return accounts;
 }
 
-export function addAccount(id: Account['id'], token: Account['token']) {
-	const accounts = getAccounts();
+export async function addAccount(id: Account['id'], token: Account['token']) {
+	const accounts = await getAccounts();
 	if (!accounts.some(x => x.id === id)) {
-		localStorage.setItem('accounts', JSON.stringify(accounts.concat([{ id, token }])));
+		return set('accounts', accounts.concat([{ id, token }]));
 	}
 }
 
@@ -68,13 +91,15 @@ export function refreshAccount() {
 	fetchAccount($i.token).then(updateAccount);
 }
 
-export async function login(token: Account['token']) {
+export async function login(token: Account['token'], showTimeline?: boolean) {
 	waiting();
 	if (_DEV_) console.log('logging as token ', token);
 	const me = await fetchAccount(token);
 	localStorage.setItem('account', JSON.stringify(me));
-	addAccount(me.id, token);
-	location.reload();
+	await addAccount(me.id, token);
+
+	if (showTimeline) location.href = '/';
+	else location.reload();
 }
 
 // このファイルに書きたくないけどここに書かないと何故かVeturが認識しない
diff --git a/src/client/components/sidebar.vue b/src/client/components/sidebar.vue
index 251f68527a..f07e742646 100644
--- a/src/client/components/sidebar.vue
+++ b/src/client/components/sidebar.vue
@@ -128,7 +128,7 @@ export default defineComponent({
 		},
 
 		async openAccountMenu(ev) {
-			const storedAccounts = getAccounts();
+			const storedAccounts = await getAccounts();
 			const accounts = (await os.api('users/show', { userIds: storedAccounts.map(x => x.id) })).filter(x => x.id !== this.$i.id);
 
 			const accountItems = accounts.map(account => ({
@@ -225,7 +225,7 @@ export default defineComponent({
 
 		addAcount() {
 			os.popup(import('./signin-dialog.vue'), {}, {
-				done: res => {
+				done: async res => {
 					addAccount(res.id, res.i);
 					os.success();
 				},
@@ -234,15 +234,15 @@ export default defineComponent({
 
 		createAccount() {
 			os.popup(import('./signup-dialog.vue'), {}, {
-				done: res => {
-					addAccount(res.id, res.i);
+				done: async res => {
+					await addAccount(res.id, res.i);
 					this.switchAccountWithToken(res.i);
 				},
 			}, 'closed');
 		},
 
-		switchAccount(account: any) {
-			const storedAccounts = getAccounts();
+		async switchAccount(account: any) {
+			const storedAccounts = await getAccounts();
 			const token = storedAccounts.find(x => x.id === account.id).token;
 			this.switchAccountWithToken(token);
 		},
diff --git a/src/client/init.ts b/src/client/init.ts
index 870304ddef..f305a89aa5 100644
--- a/src/client/init.ts
+++ b/src/client/init.ts
@@ -4,6 +4,8 @@
 
 import '@/style.scss';
 
+import { set } from 'idb-keyval';
+
 // TODO: そのうち消す
 if (localStorage.getItem('vuex') != null) {
 	const vuex = JSON.parse(localStorage.getItem('vuex'));
@@ -12,7 +14,7 @@ if (localStorage.getItem('vuex') != null) {
 		...vuex.i,
 		token: localStorage.getItem('i')
 	}));
-	localStorage.setItem('accounts', JSON.stringify(vuex.device.accounts));
+	set('accounts', JSON.parse(JSON.stringify(vuex.device.accounts)));
 	localStorage.setItem('miux:themes', JSON.stringify(vuex.device.themes));
 
 	for (const [k, v] of 	Object.entries(vuex.device.userData)) {
@@ -153,7 +155,6 @@ if ($i && $i.token) {
 		try {
 			document.body.innerHTML = '<div>Please wait...</div>';
 			await login(i);
-			location.reload();
 		} catch (e) {
 			// Render the error screen
 			// TODO: ちゃんとしたコンポーネントをレンダリングする(v10とかのトラブルシューティングゲーム付きのやつみたいな)
diff --git a/src/client/sw/compose-notification.ts b/src/client/sw/compose-notification.ts
index e9586dd574..72ad4a8f8a 100644
--- a/src/client/sw/compose-notification.ts
+++ b/src/client/sw/compose-notification.ts
@@ -6,92 +6,100 @@ declare var self: ServiceWorkerGlobalScope;
 import { getNoteSummary } from '../../misc/get-note-summary';
 import getUserName from '../../misc/get-user-name';
 
-export default async function(type, data, i18n): Promise<[string, NotificationOptions] | null | undefined> {
+export default async function(data, i18n): Promise<[string, NotificationOptions] | null | undefined> {
 	if (!i18n) {
 		console.log('no i18n');
 		return;
 	}
 
-	switch (type) {
+	switch (data.type) {
 		case 'driveFileCreated': // TODO (Server Side)
 			return [i18n.t('_notification.fileUploaded'), {
-				body: data.name,
-				icon: data.url
+				body: data.body.name,
+				icon: data.body.url,
+				data
 			}];
 		case 'notification':
-			switch (data.type) {
+			switch (data.body.type) {
 				case 'mention':
-					return [i18n.t('_notification.youGotMention', { name: getUserName(data.user) }), {
-						body: getNoteSummary(data.note, i18n.locale),
-						icon: data.user.avatarUrl
+					return [i18n.t('_notification.youGotMention', { name: getUserName(data.body.user) }), {
+						body: getNoteSummary(data.body.note, i18n.locale),
+						icon: data.body.user.avatarUrl,
+						data,
+						actions: [
+							{
+								action: 'showUser',
+								title: 'showUser'
+							}
+						]
 					}];
 
 				case 'reply':
-					return [i18n.t('_notification.youGotReply', { name: getUserName(data.user) }), {
-						body: getNoteSummary(data.note, i18n.locale),
-						icon: data.user.avatarUrl
+					return [i18n.t('_notification.youGotReply', { name: getUserName(data.body.user) }), {
+						body: getNoteSummary(data.body.note, i18n.locale),
+						icon: data.body.user.avatarUrl
 					}];
 
 				case 'renote':
-					return [i18n.t('_notification.youRenoted', { name: getUserName(data.user) }), {
-						body: getNoteSummary(data.note, i18n.locale),
-						icon: data.user.avatarUrl
+					return [i18n.t('_notification.youRenoted', { name: getUserName(data.body.user) }), {
+						body: getNoteSummary(data.body.note, i18n.locale),
+						icon: data.body.user.avatarUrl
 					}];
 
 				case 'quote':
-					return [i18n.t('_notification.youGotQuote', { name: getUserName(data.user) }), {
-						body: getNoteSummary(data.note, i18n.locale),
-						icon: data.user.avatarUrl
+					return [i18n.t('_notification.youGotQuote', { name: getUserName(data.body.user) }), {
+						body: getNoteSummary(data.body.note, i18n.locale),
+						icon: data.body.user.avatarUrl
 					}];
 
 				case 'reaction':
-					return [`${data.reaction} ${getUserName(data.user)}`, {
-						body: getNoteSummary(data.note, i18n.locale),
-						icon: data.user.avatarUrl
+					return [`${data.body.reaction} ${getUserName(data.body.user)}`, {
+						body: getNoteSummary(data.body.note, i18n.locale),
+						icon: data.body.user.avatarUrl
 					}];
 
 				case 'pollVote':
-					return [i18n.t('_notification.youGotPoll', { name: getUserName(data.user) }), {
-						body: getNoteSummary(data.note, i18n.locale),
-						icon: data.user.avatarUrl
+					return [i18n.t('_notification.youGotPoll', { name: getUserName(data.body.user) }), {
+						body: getNoteSummary(data.body.note, i18n.locale),
+						icon: data.body.user.avatarUrl
 					}];
 
 				case 'follow':
 					return [i18n.t('_notification.youWereFollowed'), {
-						body: getUserName(data.user),
-						icon: data.user.avatarUrl
+						body: getUserName(data.body.user),
+						icon: data.body.user.avatarUrl
 					}];
 
 				case 'receiveFollowRequest':
 					return [i18n.t('_notification.youReceivedFollowRequest'), {
-						body: getUserName(data.user),
-						icon: data.user.avatarUrl
+						body: getUserName(data.body.user),
+						icon: data.body.user.avatarUrl
 					}];
 
 				case 'followRequestAccepted':
 					return [i18n.t('_notification.yourFollowRequestAccepted'), {
-						body: getUserName(data.user),
-						icon: data.user.avatarUrl
+						body: getUserName(data.body.user),
+						icon: data.body.user.avatarUrl
 					}];
 
 				case 'groupInvited':
 					return [i18n.t('_notification.youWereInvitedToGroup'), {
-						body: data.group.name
+						body: data.body.group.name
 					}];
 
 				default:
 					return null;
 			}
 		case 'unreadMessagingMessage':
-			if (data.groupId === null) {
-				return [i18n.t('_notification.youGotMessagingMessageFromUser', { name: getUserName(data.user) }), {
-					icon: data.user.avatarUrl,
-					tag: `messaging:user:${data.user.id}`
+			if (data.body.groupId === null) {
+				return [i18n.t('_notification.youGotMessagingMessageFromUser', { name: getUserName(data.body.user) }), {
+					icon: data.body.user.avatarUrl,
+					tag: `messaging:user:${data.body.user.id}`
 				}];
 			}
-			return [i18n.t('_notification.youGotMessagingMessageFromGroup', { name: data.group.name }), {
-				icon: data.user.avatarUrl,
-				tag: `messaging:group:${data.group.id}`
+			return [i18n.t('_notification.youGotMessagingMessageFromGroup', { name: data.body.group.name }), {
+				icon: data.body.user.avatarUrl,
+				tag: `messaging:group:${data.body.group.id}`
 			}];
 		default:
 			return null;
diff --git a/src/client/sw/sw.ts b/src/client/sw/sw.ts
index c92cae1292..d69b7693d5 100644
--- a/src/client/sw/sw.ts
+++ b/src/client/sw/sw.ts
@@ -74,20 +74,69 @@ self.addEventListener('push', ev => {
 	ev.waitUntil(self.clients.matchAll({
 		includeUncontrolled: true
 	}).then(async clients => {
-		// クライアントがあったらストリームに接続しているということなので通知しない
-		if (clients.length != 0) return;
+		// // クライアントがあったらストリームに接続しているということなので通知しない
+		// if (clients.length != 0) return;
 
-		const { type, body } = ev.data?.json();
+		const data = ev.data?.json();
 
 		// localeを読み込めておらずi18nがundefinedだった場合はpushesPoolにためておく
-		if (!i18n) return pushesPool.push({ type, body });
+		if (!i18n) return pushesPool.push(data);
 
-		const n = await composeNotification(type, body, i18n);
+		const n = await composeNotification(data, i18n);
 		if (n) return self.registration.showNotification(...n);
 	}));
 });
 //#endregion
 
+//#region Notification
+self.addEventListener('notificationclick', ev => {
+	const { action, notification } = ev;
+	const { data } = notification;
+	const { origin } = location;
+
+	switch (action) {
+		case 'showUser':
+			switch (data.body.type) {
+				case 'reaction':
+					self.clients.openWindow(`${origin}/users/${data.body.user.id}`);
+					break;
+
+				default:
+					if ('note' in data.body) {
+						self.clients.openWindow(`${origin}/notes/${data.body.note.id}`);
+					}
+			}
+			break;
+		default:
+	}
+
+	notification.close();
+});
+
+self.addEventListener('notificationclose', async ev => {
+	self.registration.showNotification('notificationclose');
+	const { notification } = ev;
+	const { data } = notification
+
+	if (data.isNotification) {
+		const { origin } = location;
+
+		const accounts = await get('accounts');
+		const account = accounts.find(i => i.id === data.userId);
+
+		if (!account) return;
+
+		fetch(`${origin}/api/notifications/read`, {
+			method: 'POST',
+			body: JSON.stringify({
+				i: account.token,
+				notificationIds: [data.data.id]
+			})
+		});
+	}
+});
+//#endregion
+
 //#region When: Caught a message from the client
 self.addEventListener('message', ev => {
 	switch(ev.data) {
@@ -131,8 +180,8 @@ async function fetchLocale() {
 	//#endregion
 
 	//#region i18nをきちんと読み込んだ後にやりたい処理
-	for (const { type, body } of pushesPool) {
-		const n = await composeNotification(type, body, i18n);
+	for (const data of pushesPool) {
+		const n = await composeNotification(data, i18n);
 		if (n) self.registration.showNotification(...n);
 	}
 	pushesPool = [];
diff --git a/src/server/api/endpoints/notifications/read.ts b/src/server/api/endpoints/notifications/read.ts
new file mode 100644
index 0000000000..d43348b205
--- /dev/null
+++ b/src/server/api/endpoints/notifications/read.ts
@@ -0,0 +1,30 @@
+import $ from 'cafy';
+import { ID } from '../../../../misc/cafy-id';
+import { publishMainStream } from '../../../../services/stream';
+import define from '../../define';
+import { readNotification } from '../../common/read-notification';
+
+export const meta = {
+	desc: {
+		'ja-JP': '通知を既読にします。',
+		'en-US': 'Mark a notification as read.'
+	},
+
+	tags: ['notifications', 'account'],
+
+	requireCredential: true as const,
+
+	params: {
+		notificationIds: {
+			validator: $.arr($.type(ID)),
+			desc: {
+				'ja-JP': '対象の通知のIDの配列',
+				'en-US': 'Target notification IDs.'
+			}
+		}
+	},
+
+	kind: 'write:notifications'
+};
+
+export default define(meta, async (ps, user) => readNotification(user.id, ps.notificationIds));
diff --git a/src/server/api/endpoints/sw/unregister.ts b/src/server/api/endpoints/sw/unregister.ts
new file mode 100644
index 0000000000..e086357db8
--- /dev/null
+++ b/src/server/api/endpoints/sw/unregister.ts
@@ -0,0 +1,37 @@
+import $ from 'cafy';
+import define from '../../define';
+import { SwSubscriptions } from '../../../../models';
+
+export const meta = {
+	tags: ['account'],
+
+	requireCredential: true as const,
+
+	desc: {
+		'ja-JP': 'Push通知の登録を削除します。',
+		'en-US': 'Remove push noticfication registration'
+	},
+
+	params: {
+		endpoint: {
+			validator: $.str
+		},
+
+		all: {
+			validator: $.optional.bool,
+			default: false,
+			desc: {
+				'ja-JP': 'false（デフォルト）は、自分の登録のみが解除されます。trueを指定すると、指定したエンドポイントのすべての登録を解除します。'
+			}
+		}
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	await SwSubscriptions.delete(ps.all ? {
+		endpoint: ps.endpoint,
+	} : {
+		userId: user.id,
+		endpoint: ps.endpoint,
+	});
+});
diff --git a/src/services/push-notification.ts b/src/services/push-notification.ts
index d0a0c04d62..aad9964061 100644
--- a/src/services/push-notification.ts
+++ b/src/services/push-notification.ts
@@ -33,7 +33,7 @@ export default async function(userId: string, type: notificationType, body: noti
 		};
 
 		push.sendNotification(pushSubscription, JSON.stringify({
-			type, body
+			type, body, userId
 		}), {
 			proxy: config.proxy
 		}).catch((err: any) => {