diff --git a/src/client/app/common/scripts/streaming/home.ts b/src/client/app/common/scripts/streaming/home.ts
index 2715b9e0e9..50bbb56896 100644
--- a/src/client/app/common/scripts/streaming/home.ts
+++ b/src/client/app/common/scripts/streaming/home.ts
@@ -28,6 +28,30 @@ export class HomeStream extends Stream {
 			os.store.dispatch('mergeMe', i);
 		});
 
+		this.on('read_all_notifications', () => {
+			os.store.dispatch('mergeMe', {
+				hasUnreadNotification: false
+			});
+		});
+
+		this.on('unread_notification', () => {
+			os.store.dispatch('mergeMe', {
+				hasUnreadNotification: true
+			});
+		});
+
+		this.on('read_all_messaging_messages', () => {
+			os.store.dispatch('mergeMe', {
+				hasUnreadMessagingMessage: false
+			});
+		});
+
+		this.on('unread_messaging_message', () => {
+			os.store.dispatch('mergeMe', {
+				hasUnreadMessagingMessage: true
+			});
+		});
+
 		this.on('clientSettingUpdated', x => {
 			os.store.commit('settings/set', {
 				key: x.key,
diff --git a/src/client/app/desktop/views/components/ui.header.notifications.vue b/src/client/app/desktop/views/components/ui.header.notifications.vue
index 9eaaa62c61..59a16df9ec 100644
--- a/src/client/app/desktop/views/components/ui.header.notifications.vue
+++ b/src/client/app/desktop/views/components/ui.header.notifications.vue
@@ -1,7 +1,7 @@
 <template>
 <div class="notifications">
 	<button :data-active="isOpen" @click="toggle" title="%i18n:@title%">
-		%fa:R bell%<template v-if="hasUnreadNotifications">%fa:circle%</template>
+		%fa:R bell%<template v-if="hasUnreadNotification">%fa:circle%</template>
 	</button>
 	<div class="pop" v-if="isOpen">
 		<mk-notifications/>
@@ -16,44 +16,15 @@ import contains from '../../../common/scripts/contains';
 export default Vue.extend({
 	data() {
 		return {
-			isOpen: false,
-			hasUnreadNotifications: false,
-			connection: null,
-			connectionId: null
+			isOpen: false
 		};
 	},
-	mounted() {
-		if (this.$store.getters.isSignedIn) {
-			this.connection = (this as any).os.stream.getConnection();
-			this.connectionId = (this as any).os.stream.use();
-
-			this.connection.on('read_all_notifications', this.onReadAllNotifications);
-			this.connection.on('unread_notification', this.onUnreadNotification);
-
-			// Fetch count of unread notifications
-			(this as any).api('notifications/get_unread_count').then(res => {
-				if (res.count > 0) {
-					this.hasUnreadNotifications = true;
-				}
-			});
-		}
-	},
-	beforeDestroy() {
-		if (this.$store.getters.isSignedIn) {
-			this.connection.off('read_all_notifications', this.onReadAllNotifications);
-			this.connection.off('unread_notification', this.onUnreadNotification);
-			(this as any).os.stream.dispose(this.connectionId);
+	computed: {
+		hasUnreadNotification(): boolean {
+			return this.$store.getters.isSignedIn && this.$store.state.i.hasUnreadNotification;
 		}
 	},
 	methods: {
-		onReadAllNotifications() {
-			this.hasUnreadNotifications = false;
-		},
-
-		onUnreadNotification() {
-			this.hasUnreadNotifications = true;
-		},
-
 		toggle() {
 			this.isOpen ? this.close() : this.open();
 		},
diff --git a/src/client/app/mobile/views/components/ui.header.vue b/src/client/app/mobile/views/components/ui.header.vue
index 09aa18f769..c72b15fb8b 100644
--- a/src/client/app/mobile/views/components/ui.header.vue
+++ b/src/client/app/mobile/views/components/ui.header.vue
@@ -6,7 +6,7 @@
 		<p ref="welcomeback" v-if="$store.getters.isSignedIn">おかえりなさい、<b>{{ $store.state.i | userName }}</b>さん</p>
 		<div class="content" ref="mainContainer">
 			<button class="nav" @click="$parent.isDrawerOpening = true">%fa:bars%</button>
-			<template v-if="hasUnreadNotifications || hasUnreadMessagingMessages || hasGameInvitations">%fa:circle%</template>
+			<template v-if="hasUnreadNotification || hasUnreadMessagingMessage || hasGameInvitation">%fa:circle%</template>
 			<h1>
 				<slot>Misskey</slot>
 			</h1>
@@ -25,13 +25,19 @@ export default Vue.extend({
 	props: ['func'],
 	data() {
 		return {
-			hasUnreadNotifications: false,
-			hasUnreadMessagingMessages: false,
-			hasGameInvitations: false,
+			hasGameInvitation: false,
 			connection: null,
 			connectionId: null
 		};
 	},
+	computed: {
+		hasUnreadNotification(): boolean {
+			return this.$store.getters.isSignedIn && this.$store.state.i.hasUnreadNotification;
+		},
+		hasUnreadMessagingMessage(): boolean {
+			return this.$store.getters.isSignedIn && this.$store.state.i.hasUnreadMessagingMessage;
+		}
+	},
 	mounted() {
 		this.$store.commit('setUiHeaderHeight', 48);
 
@@ -39,27 +45,9 @@ export default Vue.extend({
 			this.connection = (this as any).os.stream.getConnection();
 			this.connectionId = (this as any).os.stream.use();
 
-			this.connection.on('read_all_notifications', this.onReadAllNotifications);
-			this.connection.on('unread_notification', this.onUnreadNotification);
-			this.connection.on('read_all_messaging_messages', this.onReadAllMessagingMessages);
-			this.connection.on('unread_messaging_message', this.onUnreadMessagingMessage);
 			this.connection.on('othello_invited', this.onOthelloInvited);
 			this.connection.on('othello_no_invites', this.onOthelloNoInvites);
 
-			// Fetch count of unread notifications
-			(this as any).api('notifications/get_unread_count').then(res => {
-				if (res.count > 0) {
-					this.hasUnreadNotifications = true;
-				}
-			});
-
-			// Fetch count of unread messaging messages
-			(this as any).api('messaging/unread').then(res => {
-				if (res.count > 0) {
-					this.hasUnreadMessagingMessages = true;
-				}
-			});
-
 			const ago = (new Date().getTime() - new Date(this.$store.state.i.lastUsedAt).getTime()) / 1000;
 			const isHisasiburi = ago >= 3600;
 			this.$store.state.i.lastUsedAt = new Date();
@@ -110,33 +98,17 @@ export default Vue.extend({
 	},
 	beforeDestroy() {
 		if (this.$store.getters.isSignedIn) {
-			this.connection.off('read_all_notifications', this.onReadAllNotifications);
-			this.connection.off('unread_notification', this.onUnreadNotification);
-			this.connection.off('read_all_messaging_messages', this.onReadAllMessagingMessages);
-			this.connection.off('unread_messaging_message', this.onUnreadMessagingMessage);
 			this.connection.off('othello_invited', this.onOthelloInvited);
 			this.connection.off('othello_no_invites', this.onOthelloNoInvites);
 			(this as any).os.stream.dispose(this.connectionId);
 		}
 	},
 	methods: {
-		onReadAllNotifications() {
-			this.hasUnreadNotifications = false;
-		},
-		onUnreadNotification() {
-			this.hasUnreadNotifications = true;
-		},
-		onReadAllMessagingMessages() {
-			this.hasUnreadMessagingMessages = false;
-		},
-		onUnreadMessagingMessage() {
-			this.hasUnreadMessagingMessages = true;
-		},
 		onOthelloInvited() {
-			this.hasGameInvitations = true;
+			this.hasGameInvitation = true;
 		},
 		onOthelloNoInvites() {
-			this.hasGameInvitations = false;
+			this.hasGameInvitation = false;
 		}
 	}
 });
diff --git a/src/client/app/mobile/views/components/ui.nav.vue b/src/client/app/mobile/views/components/ui.nav.vue
index 5f0cc831cc..de8c21e795 100644
--- a/src/client/app/mobile/views/components/ui.nav.vue
+++ b/src/client/app/mobile/views/components/ui.nav.vue
@@ -16,7 +16,7 @@
 			<div class="links">
 				<ul>
 					<li><router-link to="/" :data-active="$route.name == 'index'">%fa:home%%i18n:@home%%fa:angle-right%</router-link></li>
-					<li><router-link to="/i/notifications" :data-active="$route.name == 'notifications'">%fa:R bell%%i18n:@notifications%<template v-if="hasUnreadNotifications">%fa:circle%</template>%fa:angle-right%</router-link></li>
+					<li><router-link to="/i/notifications" :data-active="$route.name == 'notifications'">%fa:R bell%%i18n:@notifications%<template v-if="hasUnreadNotification">%fa:circle%</template>%fa:angle-right%</router-link></li>
 					<li><router-link to="/i/messaging" :data-active="$route.name == 'messaging'">%fa:R comments%%i18n:@messaging%<template v-if="hasUnreadMessagingMessages">%fa:circle%</template>%fa:angle-right%</router-link></li>
 					<li><router-link to="/othello" :data-active="$route.name == 'othello'">%fa:gamepad%ゲーム<template v-if="hasGameInvitations">%fa:circle%</template>%fa:angle-right%</router-link></li>
 				</ul>
@@ -46,47 +46,31 @@ export default Vue.extend({
 	props: ['isOpen'],
 	data() {
 		return {
-			hasUnreadNotifications: false,
-			hasUnreadMessagingMessages: false,
-			hasGameInvitations: false,
+			hasGameInvitation: false,
 			connection: null,
 			connectionId: null,
 			aboutUrl: `${docsUrl}/${lang}/about`
 		};
 	},
+	computed: {
+		hasUnreadNotification(): boolean {
+			return this.$store.getters.isSignedIn && this.$store.state.i.hasUnreadNotification;
+		},
+		hasUnreadMessagingMessage(): boolean {
+			return this.$store.getters.isSignedIn && this.$store.state.i.hasUnreadMessagingMessage;
+		}
+	},
 	mounted() {
 		if (this.$store.getters.isSignedIn) {
 			this.connection = (this as any).os.stream.getConnection();
 			this.connectionId = (this as any).os.stream.use();
 
-			this.connection.on('read_all_notifications', this.onReadAllNotifications);
-			this.connection.on('unread_notification', this.onUnreadNotification);
-			this.connection.on('read_all_messaging_messages', this.onReadAllMessagingMessages);
-			this.connection.on('unread_messaging_message', this.onUnreadMessagingMessage);
 			this.connection.on('othello_invited', this.onOthelloInvited);
 			this.connection.on('othello_no_invites', this.onOthelloNoInvites);
-
-			// Fetch count of unread notifications
-			(this as any).api('notifications/get_unread_count').then(res => {
-				if (res.count > 0) {
-					this.hasUnreadNotifications = true;
-				}
-			});
-
-			// Fetch count of unread messaging messages
-			(this as any).api('messaging/unread').then(res => {
-				if (res.count > 0) {
-					this.hasUnreadMessagingMessages = true;
-				}
-			});
 		}
 	},
 	beforeDestroy() {
 		if (this.$store.getters.isSignedIn) {
-			this.connection.off('read_all_notifications', this.onReadAllNotifications);
-			this.connection.off('unread_notification', this.onUnreadNotification);
-			this.connection.off('read_all_messaging_messages', this.onReadAllMessagingMessages);
-			this.connection.off('unread_messaging_message', this.onUnreadMessagingMessage);
 			this.connection.off('othello_invited', this.onOthelloInvited);
 			this.connection.off('othello_no_invites', this.onOthelloNoInvites);
 			(this as any).os.stream.dispose(this.connectionId);
@@ -98,23 +82,11 @@ export default Vue.extend({
 			if (query == null || query == '') return;
 			this.$router.push('/search?q=' + encodeURIComponent(query));
 		},
-		onReadAllNotifications() {
-			this.hasUnreadNotifications = false;
-		},
-		onUnreadNotification() {
-			this.hasUnreadNotifications = true;
-		},
-		onReadAllMessagingMessages() {
-			this.hasUnreadMessagingMessages = false;
-		},
-		onUnreadMessagingMessage() {
-			this.hasUnreadMessagingMessages = true;
-		},
 		onOthelloInvited() {
-			this.hasGameInvitations = true;
+			this.hasGameInvitation = true;
 		},
 		onOthelloNoInvites() {
-			this.hasGameInvitations = false;
+			this.hasGameInvitation = false;
 		},
 		dark() {
 			this.$store.commit('device/set', {
diff --git a/src/publishers/notify.ts b/src/publishers/notify.ts
index 2b89515d42..0e480ef010 100644
--- a/src/publishers/notify.ts
+++ b/src/publishers/notify.ts
@@ -3,6 +3,7 @@ import Notification from '../models/notification';
 import Mute from '../models/mute';
 import { pack } from '../models/notification';
 import stream from './stream';
+import User from '../models/user';
 
 export default (
 	notifiee: mongo.ObjectID,
@@ -29,6 +30,13 @@ export default (
 	stream(notifiee, 'notification',
 		await pack(notification));
 
+	// Update flag
+	User.update({ _id: notifiee }, {
+		$set: {
+			hasUnreadNotification: true
+		}
+	});
+
 	// 3秒経っても(今回作成した)通知が既読にならなかったら「未読の通知がありますよ」イベントを発行する
 	setTimeout(async () => {
 		const fresh = await Notification.findOne({ _id: notification._id }, { isRead: true });
diff --git a/src/server/api/common/read-messaging-message.ts b/src/server/api/common/read-messaging-message.ts
index 28854e186e..fd5e9f242c 100644
--- a/src/server/api/common/read-messaging-message.ts
+++ b/src/server/api/common/read-messaging-message.ts
@@ -4,6 +4,7 @@ import { IMessagingMessage as IMessage } from '../../../models/messaging-message
 import publishUserStream from '../../../publishers/stream';
 import { publishMessagingStream } from '../../../publishers/stream';
 import { publishMessagingIndexStream } from '../../../publishers/stream';
+import User from '../../../models/user';
 
 /**
  * Mark as read message(s)
@@ -62,6 +63,13 @@ export default (
 		});
 
 	if (count == 0) {
+		// Update flag
+		User.update({ _id: userId }, {
+			$set: {
+				hasUnreadMessagingMessage: false
+			}
+		});
+
 		// 全ての(いままで未読だった)自分宛てのメッセージを(これで)読みましたよというイベントを発行
 		publishUserStream(userId, 'read_all_messaging_messages');
 	}
diff --git a/src/server/api/common/read-notification.ts b/src/server/api/common/read-notification.ts
index cdb87a4114..6505c58c39 100644
--- a/src/server/api/common/read-notification.ts
+++ b/src/server/api/common/read-notification.ts
@@ -2,6 +2,7 @@ import * as mongo from 'mongodb';
 import { default as Notification, INotification } from '../../../models/notification';
 import publishUserStream from '../../../publishers/stream';
 import Mute from '../../../models/mute';
+import User from '../../../models/user';
 
 /**
  * Mark as read notification(s)
@@ -57,6 +58,13 @@ export default (
 		});
 
 	if (count == 0) {
+		// Update flag
+		User.update({ _id: userId }, {
+			$set: {
+				hasUnreadNotification: false
+			}
+		});
+
 		// 全ての(いままで未読だった)通知を(これで)読みましたよというイベントを発行
 		publishUserStream(userId, 'read_all_notifications');
 	}
diff --git a/src/server/api/endpoints.ts b/src/server/api/endpoints.ts
index c1ac4777b6..b4ab65eb16 100644
--- a/src/server/api/endpoints.ts
+++ b/src/server/api/endpoints.ts
@@ -279,11 +279,6 @@ const endpoints: Endpoint[] = [
 		kind: 'account/read'
 	},
 
-	{
-		name: 'notifications/get_unread_count',
-		withCredential: true,
-		kind: 'notification-read'
-	},
 	{
 		name: 'notifications/delete',
 		withCredential: true,
@@ -610,11 +605,6 @@ const endpoints: Endpoint[] = [
 		withCredential: true,
 		kind: 'messaging-read'
 	},
-	{
-		name: 'messaging/unread',
-		withCredential: true,
-		kind: 'messaging-read'
-	},
 	{
 		name: 'messaging/messages',
 		withCredential: true,
diff --git a/src/server/api/endpoints/messaging/messages.ts b/src/server/api/endpoints/messaging/messages.ts
index 0338aba68a..9c3a48334b 100644
--- a/src/server/api/endpoints/messaging/messages.ts
+++ b/src/server/api/endpoints/messaging/messages.ts
@@ -1,6 +1,3 @@
-/**
- * Module dependencies
- */
 import $ from 'cafy'; import ID from '../../../../cafy-id';
 import Message from '../../../../models/messaging-message';
 import User from '../../../../models/user';
@@ -9,10 +6,6 @@ import read from '../../common/read-messaging-message';
 
 /**
  * Get messages
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Get 'userId' parameter
diff --git a/src/server/api/endpoints/messaging/messages/create.ts b/src/server/api/endpoints/messaging/messages/create.ts
index db471839e7..41238de1e1 100644
--- a/src/server/api/endpoints/messaging/messages/create.ts
+++ b/src/server/api/endpoints/messaging/messages/create.ts
@@ -91,6 +91,13 @@ module.exports = (params, user) => new Promise(async (res, rej) => {
 	publishMessagingIndexStream(message.recipientId, 'message', messageObj);
 	publishUserStream(message.recipientId, 'messaging_message', messageObj);
 
+	// Update flag
+	User.update({ _id: recipient._id }, {
+		$set: {
+			hasUnreadMessagingMessage: true
+		}
+	});
+
 	// 3秒経っても(今回作成した)メッセージが既読にならなかったら「未読のメッセージがありますよ」イベントを発行する
 	setTimeout(async () => {
 		const freshMessage = await Message.findOne({ _id: message._id }, { isRead: true });
diff --git a/src/server/api/endpoints/messaging/unread.ts b/src/server/api/endpoints/messaging/unread.ts
deleted file mode 100644
index 1d83af501d..0000000000
--- a/src/server/api/endpoints/messaging/unread.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
- * Module dependencies
- */
-import Message from '../../../../models/messaging-message';
-import Mute from '../../../../models/mute';
-
-/**
- * Get count of unread messages
- */
-module.exports = (params, user) => new Promise(async (res, rej) => {
-	const mute = await Mute.find({
-		muterId: user._id,
-		deletedAt: { $exists: false }
-	});
-	const mutedUserIds = mute.map(m => m.muteeId);
-
-	const count = await Message
-		.count({
-			userId: {
-				$nin: mutedUserIds
-			},
-			recipientId: user._id,
-			isRead: false
-		});
-
-	res({
-		count: count
-	});
-});
diff --git a/src/server/api/endpoints/notifications/get_unread_count.ts b/src/server/api/endpoints/notifications/get_unread_count.ts
deleted file mode 100644
index 9766366ff1..0000000000
--- a/src/server/api/endpoints/notifications/get_unread_count.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-/**
- * Module dependencies
- */
-import Notification from '../../../../models/notification';
-import Mute from '../../../../models/mute';
-
-/**
- * Get count of unread notifications
- */
-module.exports = (params, user) => new Promise(async (res, rej) => {
-	const mute = await Mute.find({
-		muterId: user._id
-	});
-	const mutedUserIds = mute.map(m => m.muteeId);
-
-	const count = await Notification
-		.count({
-			notifieeId: user._id,
-			notifierId: {
-				$nin: mutedUserIds
-			},
-			isRead: false
-		});
-
-	res({
-		count: count
-	});
-});
diff --git a/src/server/api/endpoints/notifications/mark_as_read_all.ts b/src/server/api/endpoints/notifications/mark_as_read_all.ts
index dce3cb4663..7a48ca3e62 100644
--- a/src/server/api/endpoints/notifications/mark_as_read_all.ts
+++ b/src/server/api/endpoints/notifications/mark_as_read_all.ts
@@ -1,8 +1,6 @@
-/**
- * Module dependencies
- */
 import Notification from '../../../../models/notification';
 import event from '../../../../publishers/stream';
+import User from '../../../../models/user';
 
 /**
  * Mark as read all notifications
@@ -23,6 +21,13 @@ module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Response
 	res();
 
+	// Update flag
+	User.update({ _id: user._id }, {
+		$set: {
+			hasUnreadNotification: false
+		}
+	});
+
 	// 全ての通知を読みましたよというイベントを発行
 	event(user._id, 'read_all_notifications');
 });