diff --git a/locales/en-US.yml b/locales/en-US.yml
index e19f1585a8..d580e324bf 100755
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -2824,3 +2824,6 @@ _contextMenu:
   app: "Application"
   appWithShift: "Application with shift key"
   native: "Native"
+_reactionChecksMuting:
+  title: "Check mutings when get reactions"
+  caption: "Check mutings when get reactions, but cache does not work and may increase traffic"
diff --git a/locales/index.d.ts b/locales/index.d.ts
index 27bcf5b53d..ef516b0a28 100755
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -10895,6 +10895,16 @@ export interface Locale extends ILocale {
          */
         "native": string;
     };
+    "_reactionChecksMuting": {
+        /**
+         * リアクションでミュートを考慮する
+         */
+        "title": string;
+        /**
+         * リアクションがミュートを考慮しますが、キャッシュが効かず通信量が増えることがあります。
+         */
+        "caption": string;
+    };
 }
 declare const locales: {
     [lang: string]: Locale;
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 3728ec45d3..61d679ef14 100755
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -2899,3 +2899,7 @@ _contextMenu:
   app: "アプリケーション"
   appWithShift: "Shiftキーでアプリケーション"
   native: "ブラウザのUI"
+
+_reactionChecksMuting:
+  title: "リアクションでミュートを考慮する"
+  caption: "リアクションがミュートを考慮しますが、キャッシュが効かず通信量が増えることがあります。"
diff --git a/packages/backend/src/server/api/endpoints/notes/reactions.ts b/packages/backend/src/server/api/endpoints/notes/reactions.ts
index 7e334df93e..57aff1a1d5 100755
--- a/packages/backend/src/server/api/endpoints/notes/reactions.ts
+++ b/packages/backend/src/server/api/endpoints/notes/reactions.ts
@@ -4,13 +4,12 @@
  */
 
 import { Inject, Injectable } from '@nestjs/common';
-import { Brackets, type FindOptionsWhere } from 'typeorm';
 import type { NoteReactionsRepository } from '@/models/_.js';
-import type { MiNoteReaction } from '@/models/NoteReaction.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { NoteReactionEntityService } from '@/core/entities/NoteReactionEntityService.js';
 import { DI } from '@/di-symbols.js';
 import { QueryService } from '@/core/QueryService.js';
+import { CacheService } from '@/core/CacheService.js';
 
 export const meta = {
 	tags: ['notes', 'reactions'],
@@ -59,6 +58,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 		private noteReactionEntityService: NoteReactionEntityService,
 		private queryService: QueryService,
+		private cacheService: CacheService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const query = this.queryService.makePaginationQuery(this.noteReactionsRepository.createQueryBuilder('reaction'), ps.sinceId, ps.untilId)
@@ -66,6 +66,15 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('reaction.user', 'user')
 				.leftJoinAndSelect('reaction.note', 'note');
 
+			if (me != null) {
+				const [userIdsWhoMeMuting, userIdsWhoBlockingMe] = await Promise.all([
+					this.cacheService.userMutingsCache.get(me.id),
+					this.cacheService.userBlockedCache.get(me.id),
+				]);
+
+			  query.andWhere('reaction.userId NOT IN (:...userIds)', { userIds: Array.from(userIdsWhoMeMuting ?? []).concat(Array.from(userIdsWhoBlockingMe ?? [])) });
+			}
+
 			if (ps.type) {
 				// ローカルリアクションはホスト名が . とされているが
 				// DB 上ではそうではないので、必要に応じて変換
diff --git a/packages/frontend/src/components/MkReactionsViewer.details.vue b/packages/frontend/src/components/MkReactionsViewer.details.vue
index 60118fadd2..aa5cbb73a0 100755
--- a/packages/frontend/src/components/MkReactionsViewer.details.vue
+++ b/packages/frontend/src/components/MkReactionsViewer.details.vue
@@ -15,6 +15,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<MkAvatar :class="$style.avatar" :user="u"/>
 				<MkUserName :user="u" :nowrap="true"/>
 			</div>
+			<div v-if="count <= 0" :class="$style.user"> {{ i18n.ts.noUsers }} </div>
 			<div v-if="count > 10" :class="$style.more">+{{ count - 10 }}</div>
 		</div>
 	</div>
@@ -26,6 +27,7 @@ import { } from 'vue';
 import MkTooltip from './MkTooltip.vue';
 import MkReactionIcon from '@/components/MkReactionIcon.vue';
 import { getEmojiName } from '@/scripts/emojilist.js';
+import { i18n } from '@/i18n';
 
 defineProps<{
 	showing: boolean;
diff --git a/packages/frontend/src/components/MkReactionsViewer.reaction.vue b/packages/frontend/src/components/MkReactionsViewer.reaction.vue
index 6506035f8f..3688801791 100755
--- a/packages/frontend/src/components/MkReactionsViewer.reaction.vue
+++ b/packages/frontend/src/components/MkReactionsViewer.reaction.vue
@@ -36,6 +36,8 @@ import { checkReactionPermissions } from '@/scripts/check-reaction-permissions.j
 import { customEmojisMap } from '@/custom-emojis.js';
 import { getUnicodeEmoji } from '@/scripts/emojilist.js';
 
+const reactionChecksMuting = computed(defaultStore.makeGetterSetter('reactionChecksMuting'));
+
 const props = defineProps<{
 	reaction: string;
 	count: number;
@@ -146,7 +148,9 @@ onMounted(() => {
 
 if (!mock) {
 	useTooltip(buttonEl, async (showing) => {
-		const reactions = await misskeyApiGet('notes/reactions', {
+		const useGet = !reactionChecksMuting.value;
+		const apiCall = useGet ? misskeyApiGet : misskeyApi;
+		const reactions = await apiCall('notes/reactions', {
 			noteId: props.note.id,
 			type: props.reaction,
 			limit: 10,
@@ -154,12 +158,13 @@ if (!mock) {
 		});
 
 		const users = reactions.map(x => x.user);
+		const count = users.length;
 
 		const { dispose } = os.popup(XDetails, {
 			showing,
 			reaction: props.reaction,
 			users,
-			count: props.count,
+			count,
 			targetElement: buttonEl.value,
 		}, {
 			closed: () => dispose(),
diff --git a/packages/frontend/src/pages/settings/general.vue b/packages/frontend/src/pages/settings/general.vue
index 637c1b24b9..599285d9af 100755
--- a/packages/frontend/src/pages/settings/general.vue
+++ b/packages/frontend/src/pages/settings/general.vue
@@ -235,6 +235,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<MkSwitch v-model="enableHorizontalSwipe">{{ i18n.ts.enableHorizontalSwipe }}</MkSwitch>
 				<MkSwitch v-model="alwaysConfirmFollow">{{ i18n.ts.alwaysConfirmFollow }}</MkSwitch>
 				<MkSwitch v-model="confirmWhenRevealingSensitiveMedia">{{ i18n.ts.confirmWhenRevealingSensitiveMedia }}</MkSwitch>
+
+				<MkSwitch v-model="reactionChecksMuting">
+					{{ i18n.ts._reactionChecksMuting.title }}<span class="_beta">{{ i18n.ts.originalFeature }}</span>
+					<template #caption>{{ i18n.ts._reactionChecksMuting.caption }}</template>
+				</MkSwitch>
 			</div>
 			<MkSelect v-model="serverDisconnectedBehavior">
 				<template #label>{{ i18n.ts.whenServerDisconnected }}</template>
@@ -435,6 +440,8 @@ const useNativeUIForVideoAudioPlayer = computed(defaultStore.makeGetterSetter('u
 const alwaysConfirmFollow = computed(defaultStore.makeGetterSetter('alwaysConfirmFollow'));
 const confirmWhenRevealingSensitiveMedia = computed(defaultStore.makeGetterSetter('confirmWhenRevealingSensitiveMedia'));
 const contextMenu = computed(defaultStore.makeGetterSetter('contextMenu'));
+const searchEngine = computed(defaultStore.makeGetterSetter('searchEngine'));
+const reactionChecksMuting = computed(defaultStore.makeGetterSetter('reactionChecksMuting'));
 
 watch(lang, () => {
 	miLocalStorage.setItem('lang', lang.value as string);
diff --git a/packages/frontend/src/store.ts b/packages/frontend/src/store.ts
index dd155190aa..e2c839939f 100755
--- a/packages/frontend/src/store.ts
+++ b/packages/frontend/src/store.ts
@@ -532,10 +532,10 @@ export const defaultStore = markRaw(new Storage('base', {
 		where: 'device',
 		default: false,
 	},
-  contextMenu: {
+	contextMenu: {
 		where: 'device',
 		default: 'app' as 'app' | 'appWithShift' | 'native',
-  },
+	},
 
 	sound_masterVolume: {
 		where: 'device',
@@ -565,6 +565,14 @@ export const defaultStore = markRaw(new Storage('base', {
 		where: 'device',
 		default: { type: 'syuilo/bubble2', volume: 1 } as SoundStore,
 	},
+	searchEngine: {
+		where: 'device',
+		default: 'https://google.com/search?q=',
+	},
+	reactionChecksMuting: {
+		where: 'device',
+		default: true,
+	},
 }));
 
 // TODO: 他のタブと永続化されたstateを同期