diff --git a/locales/index.d.ts b/locales/index.d.ts
index db9bb63bad..db9db93c5b 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -1554,6 +1554,10 @@ export interface Locale extends ILocale {
      * リモートユーザーのため、情報が不完全です。
      */
     "remoteUserCaution": string;
+    /**
+     * センシティブなユーザーです。
+     */
+    "sensitiveUserCaution": string;
     /**
      * アクティビティ
      */
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 761496c80c..4da9fed64c 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -383,6 +383,7 @@ termsOfService: "利用規約"
 start: "始める"
 home: "ホーム"
 remoteUserCaution: "リモートユーザーのため、情報が不完全です。"
+sensitiveUserCaution: "センシティブなユーザーです。"
 activity: "アクティビティ"
 images: "画像"
 image: "画像"
diff --git a/packages/backend/migration/1722353293595-AddSensitiveProfile.js b/packages/backend/migration/1722353293595-AddSensitiveProfile.js
new file mode 100644
index 0000000000..23dcdc672e
--- /dev/null
+++ b/packages/backend/migration/1722353293595-AddSensitiveProfile.js
@@ -0,0 +1,11 @@
+export class AddSensitiveProfile1722353293595 {
+    name = 'AddSensitiveProfile1722353293595'
+
+    async up(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "user_profile" ADD "isSensitive" boolean NOT NULL DEFAULT false`);
+    }
+
+    async down(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "user_profile" DROP COLUMN "isSensitive"`);
+    }
+}
diff --git a/packages/backend/src/core/entities/UserEntityService.ts b/packages/backend/src/core/entities/UserEntityService.ts
index eb852759aa..4b2f5a0ef0 100644
--- a/packages/backend/src/core/entities/UserEntityService.ts
+++ b/packages/backend/src/core/entities/UserEntityService.ts
@@ -569,6 +569,7 @@ export class UserEntityService implements OnModuleInit {
 				isLocked: user.isLocked,
 				isSilenced: this.roleService.getUserPolicies(user.id).then(r => !r.canPublicNote),
 				isSuspended: user.isSuspended,
+				isSensitive: user.isSensitive,
 				description: profile!.description,
 				location: profile!.location,
 				birthday: profile!.birthday,
diff --git a/packages/backend/src/models/UserProfile.ts b/packages/backend/src/models/UserProfile.ts
index f082dada00..71b093e6a6 100644
--- a/packages/backend/src/models/UserProfile.ts
+++ b/packages/backend/src/models/UserProfile.ts
@@ -177,6 +177,12 @@ export class MiUserProfile {
 	})
 	public isIndexable: boolean;
 
+	@Column('boolean', {
+		default: false,
+		comment: 'Whether User is sensitive.',
+	})
+	public isSensitive: boolean;
+
 	@Column('boolean', {
 		default: true,
 	})
diff --git a/packages/backend/src/models/json-schema/user.ts b/packages/backend/src/models/json-schema/user.ts
index c928d643f7..ef5695040e 100644
--- a/packages/backend/src/models/json-schema/user.ts
+++ b/packages/backend/src/models/json-schema/user.ts
@@ -254,6 +254,11 @@ export const packedUserDetailedNotMeOnlySchema = {
 			nullable: false, optional: false,
 			example: false,
 		},
+		isSensitive: {
+			type: 'boolean',
+			nullable: false, optional: false,
+			example: false,
+		},
 		description: {
 			type: 'string',
 			nullable: true, optional: false,
diff --git a/packages/backend/src/server/api/endpoints/i/update.ts b/packages/backend/src/server/api/endpoints/i/update.ts
index 6b13f97aa6..ee92a74bc0 100644
--- a/packages/backend/src/server/api/endpoints/i/update.ts
+++ b/packages/backend/src/server/api/endpoints/i/update.ts
@@ -330,7 +330,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				updates.isIndexable = ps.isIndexable;
 				profileUpdates.isIndexable = ps.isIndexable;
 			};
-			if (typeof ps.isSensitive === 'boolean') updates.isSensitive = ps.isSensitive;
+			if (typeof ps.isSensitive === 'boolean') {
+				updates.isSensitive = ps.isSensitive;
+				profileUpdates.isSensitive = ps.isSensitive;
+			};
 			if (typeof ps.isCat === 'boolean') updates.isCat = ps.isCat;
 			if (typeof ps.injectFeaturedNote === 'boolean') profileUpdates.injectFeaturedNote = ps.injectFeaturedNote;
 			if (typeof ps.receiveAnnouncementEmail === 'boolean') profileUpdates.receiveAnnouncementEmail = ps.receiveAnnouncementEmail;
diff --git a/packages/cherrypick-js/src/autogen/types.ts b/packages/cherrypick-js/src/autogen/types.ts
index a493dac965..3814104b51 100644
--- a/packages/cherrypick-js/src/autogen/types.ts
+++ b/packages/cherrypick-js/src/autogen/types.ts
@@ -4033,6 +4033,8 @@ export type components = {
       isSilenced: boolean;
       /** @example false */
       isSuspended: boolean;
+      /** @example false */
+      isSensitive: boolean;
       /** @example Hi masters, I am Ai! */
       description: string | null;
       location: string | null;
diff --git a/packages/frontend/src/components/MkUserSensitiveCaution.vue b/packages/frontend/src/components/MkUserSensitiveCaution.vue
new file mode 100644
index 0000000000..d0890bfc93
--- /dev/null
+++ b/packages/frontend/src/components/MkUserSensitiveCaution.vue
@@ -0,0 +1,19 @@
+<template>
+	<div :class="$style.root"><i class="ti ti-alert-triangle" style="margin-right: 8px;"></i>{{ i18n.ts.sensitiveUserCaution }}</div>
+</template>
+
+<script lang="ts" setup>
+import { i18n } from '@/i18n.js';
+
+</script>
+
+<style lang="scss" module>
+.root {
+	font-size: 0.8em;
+	padding: 16px;
+	background: var(--infoWarnBg);
+	color: var(--error);
+	border-radius: var(--radius);
+}
+
+</style>
diff --git a/packages/frontend/src/pages/user/home.vue b/packages/frontend/src/pages/user/home.vue
index e0178623cc..aeee1a7ab0 100644
--- a/packages/frontend/src/pages/user/home.vue
+++ b/packages/frontend/src/pages/user/home.vue
@@ -14,6 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<div class="profile _gaps">
 				<MkAccountMoved v-if="user.movedTo" :movedTo="user.movedTo"/>
 				<MkRemoteCaution v-if="user.host != null" :href="user.url ?? user.uri!" class="warn"/>
+				<MkUserSensitiveCaution v-if="user.isSensitive" />
 
 				<div :key="user.id" class="main _panel">
 					<div class="banner-container" :style="style">
@@ -174,6 +175,7 @@ import MkNote from '@/components/MkNote.vue';
 import MkFollowButton from '@/components/MkFollowButton.vue';
 import MkAccountMoved from '@/components/MkAccountMoved.vue';
 import MkRemoteCaution from '@/components/MkRemoteCaution.vue';
+import MkUserSensitiveCaution from '@/components/MkUserSensitiveCaution.vue';
 import MkTextarea from '@/components/MkTextarea.vue';
 import MkOmit from '@/components/MkOmit.vue';
 import MkInfo from '@/components/MkInfo.vue';