diff --git a/packages/backend/src/core/AnnouncementService.ts b/packages/backend/src/core/AnnouncementService.ts
index bf7ab49b88..482aeee39f 100644
--- a/packages/backend/src/core/AnnouncementService.ts
+++ b/packages/backend/src/core/AnnouncementService.ts
@@ -75,9 +75,15 @@ export class AnnouncementService {
 
 		const packed = (await this.packMany([announcement]))[0];
 
-		this.globalEventService.publishBroadcastStream('announcementCreated', {
-			announcement: packed,
-		});
+		if (values.userId) {
+			this.globalEventService.publishMainStream(values.userId, 'announcementCreated', {
+				announcement: packed,
+			});
+		} else {
+			this.globalEventService.publishBroadcastStream('announcementCreated', {
+				announcement: packed,
+			});
+		}
 
 		return {
 			raw: announcement,
diff --git a/packages/backend/src/server/api/stream/types.ts b/packages/backend/src/server/api/stream/types.ts
index 1f0dea03b1..751a23de8d 100644
--- a/packages/backend/src/server/api/stream/types.ts
+++ b/packages/backend/src/server/api/stream/types.ts
@@ -108,6 +108,9 @@ export interface MainStreamTypes {
 	driveFileCreated: Packed<'DriveFile'>;
 	readAntenna: Antenna;
 	receiveFollowRequest: Packed<'User'>;
+	announcementCreated: {
+		announcement: Packed<'Announcement'>;
+	};
 }
 
 export interface DriveStreamTypes {
diff --git a/packages/frontend/src/components/MkUserAnnouncementEditDialog.vue b/packages/frontend/src/components/MkUserAnnouncementEditDialog.vue
new file mode 100644
index 0000000000..ce41b3116d
--- /dev/null
+++ b/packages/frontend/src/components/MkUserAnnouncementEditDialog.vue
@@ -0,0 +1,145 @@
+<!--
+SPDX-FileCopyrightText: syuilo and other misskey contributors
+SPDX-License-Identifier: AGPL-3.0-only
+-->
+
+<template>
+<MkModalWindow
+	ref="dialog"
+	:width="400"
+	@close="dialog.close()"
+	@closed="$emit('closed')"
+>
+	<template v-if="announcement" #header>:{{ announcement.title }}:</template>
+	<template v-else #header>New announcement</template>
+
+	<div>
+		<MkSpacer :marginMin="20" :marginMax="28">
+			<div class="_gaps_m">
+				<MkInput v-model="title">
+					<template #label>{{ i18n.ts.title }}</template>
+				</MkInput>
+				<MkTextarea v-model="text">
+					<template #label>{{ i18n.ts.text }}</template>
+				</MkTextarea>
+				<MkRadios v-model="icon">
+					<template #label>{{ i18n.ts.icon }}</template>
+					<option value="info"><i class="ti ti-info-circle"></i></option>
+					<option value="warning"><i class="ti ti-alert-triangle" style="color: var(--warn);"></i></option>
+					<option value="error"><i class="ti ti-circle-x" style="color: var(--error);"></i></option>
+					<option value="success"><i class="ti ti-check" style="color: var(--success);"></i></option>
+				</MkRadios>
+				<MkRadios v-model="display">
+					<template #label>{{ i18n.ts.display }}</template>
+					<option value="normal">{{ i18n.ts.normal }}</option>
+					<option value="banner">{{ i18n.ts.banner }}</option>
+					<option value="dialog">{{ i18n.ts.dialog }}</option>
+				</MkRadios>
+				<MkSwitch v-model="needConfirmationToRead">
+					{{ i18n.ts._announcement.needConfirmationToRead }}
+					<template #caption>{{ i18n.ts._announcement.needConfirmationToReadDescription }}</template>
+				</MkSwitch>
+				<MkButton v-if="announcement" danger @click="del()"><i class="ti ti-trash"></i> {{ i18n.ts.delete }}</MkButton>
+			</div>
+		</MkSpacer>
+		<div :class="$style.footer">
+			<MkButton primary rounded style="margin: 0 auto;" @click="done"><i class="ti ti-check"></i> {{ props.announcement ? i18n.ts.update : i18n.ts.create }}</MkButton>
+		</div>
+	</div>
+</MkModalWindow>
+</template>
+
+<script lang="ts" setup>
+import { } from 'vue';
+import * as misskey from 'misskey-js';
+import MkModalWindow from '@/components/MkModalWindow.vue';
+import MkButton from '@/components/MkButton.vue';
+import MkInput from '@/components/MkInput.vue';
+import * as os from '@/os';
+import { i18n } from '@/i18n';
+import MkTextarea from '@/components/MkTextarea.vue';
+import MkSwitch from '@/components/MkSwitch.vue';
+import MkRadios from '@/components/MkRadios.vue';
+
+const props = defineProps<{
+	user: misskey.entities.User,
+	announcement?: any,
+}>();
+
+let dialog = $ref(null);
+let title: string = $ref(props.announcement ? props.announcement.title : '');
+let text: string = $ref(props.announcement ? props.announcement.text : '');
+let icon: string = $ref(props.announcement ? props.announcement.icon : 'info');
+let display: string = $ref(props.announcement ? props.announcement.display : 'dialog');
+let needConfirmationToRead = $ref(props.announcement ? props.announcement.needConfirmationToRead : false);
+
+const emit = defineEmits<{
+	(ev: 'done', v: { deleted?: boolean; updated?: any; created?: any }): void,
+	(ev: 'closed'): void
+}>();
+
+async function done() {
+	const params = {
+		title: title,
+		text: text,
+		icon: icon,
+		imageUrl: null,
+		display: display,
+		needConfirmationToRead: needConfirmationToRead,
+		userId: props.user.id,
+	};
+
+	if (props.announcement) {
+		await os.apiWithDialog('admin/announcements/update', {
+			id: props.announcement.id,
+			...params,
+		});
+
+		emit('done', {
+			updated: {
+				id: props.announcement.id,
+				...params,
+			},
+		});
+
+		dialog.close();
+	} else {
+		const created = await os.apiWithDialog('admin/announcements/create', params);
+
+		emit('done', {
+			created: created,
+		});
+
+		dialog.close();
+	}
+}
+
+async function del() {
+	const { canceled } = await os.confirm({
+		type: 'warning',
+		text: i18n.t('removeAreYouSure', { x: title }),
+	});
+	if (canceled) return;
+
+	os.api('admin/announcements/delete', {
+		id: props.announcement.id,
+	}).then(() => {
+		emit('done', {
+			deleted: true,
+		});
+		dialog.close();
+	});
+}
+</script>
+
+<style lang="scss" module>
+.footer {
+	position: sticky;
+	bottom: 0;
+	left: 0;
+	padding: 12px;
+	border-top: solid 0.5px var(--divider);
+	-webkit-backdrop-filter: var(--blur, blur(15px));
+	backdrop-filter: var(--blur, blur(15px));
+}
+</style>
diff --git a/packages/frontend/src/pages/emoji-edit-dialog.vue b/packages/frontend/src/pages/emoji-edit-dialog.vue
index 19c63f8000..7e91805a12 100644
--- a/packages/frontend/src/pages/emoji-edit-dialog.vue
+++ b/packages/frontend/src/pages/emoji-edit-dialog.vue
@@ -63,7 +63,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				</MkFolder>
 				<MkSwitch v-model="isSensitive">isSensitive</MkSwitch>
 				<MkSwitch v-model="localOnly">{{ i18n.ts.localOnly }}</MkSwitch>
-				<MkButton danger @click="del()"><i class="ti ti-trash"></i> {{ i18n.ts.delete }}</MkButton>
+				<MkButton v-if="emoji" danger @click="del()"><i class="ti ti-trash"></i> {{ i18n.ts.delete }}</MkButton>
 			</div>
 		</MkSpacer>
 		<div :class="$style.footer">
diff --git a/packages/frontend/src/pages/user-info.vue b/packages/frontend/src/pages/user-info.vue
index 42b561cfe2..2fba02486f 100644
--- a/packages/frontend/src/pages/user-info.vue
+++ b/packages/frontend/src/pages/user-info.vue
@@ -132,6 +132,18 @@ SPDX-License-Identifier: AGPL-3.0-only
 					</div>
 				</MkFolder>
 
+				<MkFolder v-if="user.host == null && iAmModerator">
+					<template #icon><i class="ti ti-speakerphone"></i></template>
+					<template #label>{{ i18n.ts.announcements }}</template>
+					<div class="_gaps">
+						<MkButton primary rounded @click="createAnnouncement"><i class="ti ti-plus"></i> {{ i18n.ts.new }}</MkButton>
+
+						<div v-for="announcement in info.announcements" :key="announcement.id" :class="$style.announcementItem">
+							{{ announcement.title }}
+						</div>
+					</div>
+				</MkFolder>
+
 				<MkFolder>
 					<template #icon><i class="ti ti-password"></i></template>
 					<template #label>IP</template>
@@ -185,7 +197,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, defineAsyncComponent, watch } from 'vue';
 import * as misskey from 'misskey-js';
 import MkChart from '@/components/MkChart.vue';
 import MkObjectView from '@/components/MkObjectView.vue';
@@ -406,6 +418,12 @@ function toggleRoleItem(role) {
 	}
 }
 
+function createAnnouncement() {
+	os.popup(defineAsyncComponent(() => import('@/components/MkUserAnnouncementEditDialog.vue')), {
+		user,
+	}, {}, 'closed');
+}
+
 watch(() => props.userId, () => {
 	init = createFetcher();
 }, {