diff --git a/packages/backend/migration/1729414690009-defaultSensitive.js b/packages/backend/migration/1729414690009-defaultSensitive.js
new file mode 100644
index 0000000000..47debf05a7
--- /dev/null
+++ b/packages/backend/migration/1729414690009-defaultSensitive.js
@@ -0,0 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: marie and sharkey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export class DefaultSensitive1729414690009 {
+    name = 'DefaultSensitive1729414690009'
+
+    async up(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "user_profile" ADD "defaultSensitive" boolean NOT NULL DEFAULT false`);
+    }
+
+    async down(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "user_profile" DROP COLUMN "defaultSensitive"`);
+    }
+}
diff --git a/packages/backend/src/core/DriveService.ts b/packages/backend/src/core/DriveService.ts
index 744bc65be7..520c339d7d 100644
--- a/packages/backend/src/core/DriveService.ts
+++ b/packages/backend/src/core/DriveService.ts
@@ -560,7 +560,7 @@ export class DriveService {
 		file.maybeSensitive = info.sensitive;
 		file.maybePorn = info.porn;
 		file.isSensitive = user
-			? this.userEntityService.isLocalUser(user) && profile!.alwaysMarkNsfw ? true :
+			? this.userEntityService.isLocalUser(user) && (profile!.alwaysMarkNsfw || profile!.defaultSensitive) ? true :
 			sensitive ?? false
 			: false;
 
diff --git a/packages/backend/src/core/entities/UserEntityService.ts b/packages/backend/src/core/entities/UserEntityService.ts
index 703b07973e..b1832ca0f5 100644
--- a/packages/backend/src/core/entities/UserEntityService.ts
+++ b/packages/backend/src/core/entities/UserEntityService.ts
@@ -627,6 +627,7 @@ export class UserEntityService implements OnModuleInit {
 				injectFeaturedNote: profile!.injectFeaturedNote,
 				receiveAnnouncementEmail: profile!.receiveAnnouncementEmail,
 				alwaysMarkNsfw: profile!.alwaysMarkNsfw,
+				defaultSensitive: profile!.defaultSensitive,
 				autoSensitive: profile!.autoSensitive,
 				carefulBot: profile!.carefulBot,
 				autoAcceptFollowed: profile!.autoAcceptFollowed,
diff --git a/packages/backend/src/models/UserProfile.ts b/packages/backend/src/models/UserProfile.ts
index 9b87130ce1..751b1aff08 100644
--- a/packages/backend/src/models/UserProfile.ts
+++ b/packages/backend/src/models/UserProfile.ts
@@ -196,6 +196,11 @@ export class MiUserProfile {
 	})
 	public alwaysMarkNsfw: boolean;
 
+	@Column('boolean', {
+		default: false,
+	})
+	public defaultSensitive: boolean;
+
 	@Column('boolean', {
 		default: false,
 	})
diff --git a/packages/backend/src/models/json-schema/user.ts b/packages/backend/src/models/json-schema/user.ts
index beb4dcc12c..fdbd5fa8e2 100644
--- a/packages/backend/src/models/json-schema/user.ts
+++ b/packages/backend/src/models/json-schema/user.ts
@@ -516,6 +516,10 @@ export const packedMeDetailedOnlySchema = {
 			type: 'boolean',
 			nullable: false, optional: false,
 		},
+		defaultSensitive: {
+			type: 'boolean',
+			nullable: false, optional: false,
+		},
 		autoSensitive: {
 			type: 'boolean',
 			nullable: false, 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 026ad614d8..8994c3fff6 100644
--- a/packages/backend/src/server/api/endpoints/i/update.ts
+++ b/packages/backend/src/server/api/endpoints/i/update.ts
@@ -193,6 +193,7 @@ export const paramDef = {
 		injectFeaturedNote: { type: 'boolean' },
 		receiveAnnouncementEmail: { type: 'boolean' },
 		alwaysMarkNsfw: { type: 'boolean' },
+		defaultSensitive: { type: 'boolean' },
 		autoSensitive: { type: 'boolean' },
 		followingVisibility: { type: 'string', enum: ['public', 'followers', 'private'] },
 		followersVisibility: { type: 'string', enum: ['public', 'followers', 'private'] },
@@ -349,6 +350,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				if (policies.alwaysMarkNsfw) throw new ApiError(meta.errors.restrictedByRole);
 				profileUpdates.alwaysMarkNsfw = ps.alwaysMarkNsfw;
 			}
+			if (typeof ps.defaultSensitive === 'boolean') profileUpdates.defaultSensitive = ps.defaultSensitive;
 			if (ps.emailNotificationTypes !== undefined) profileUpdates.emailNotificationTypes = ps.emailNotificationTypes;
 
 			if (ps.avatarId) {
diff --git a/packages/frontend/src/pages/settings/drive.vue b/packages/frontend/src/pages/settings/drive.vue
index fa09637844..c1e3258631 100644
--- a/packages/frontend/src/pages/settings/drive.vue
+++ b/packages/frontend/src/pages/settings/drive.vue
@@ -48,7 +48,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<template #label>{{ i18n.ts.keepOriginalFilename }}</template>
 				<template #caption>{{ i18n.ts.keepOriginalFilenameDescription }}</template>
 			</MkSwitch>
-			<MkSwitch v-model="alwaysMarkNsfw" @update:modelValue="saveProfile()">
+			<MkSwitch v-model="defaultSensitive" @update:modelValue="saveProfile()">
 				<template #label>{{ i18n.ts.alwaysMarkSensitive }}</template>
 			</MkSwitch>
 		</div>
@@ -80,7 +80,7 @@ const fetching = ref(true);
 const usage = ref<number | null>(null);
 const capacity = ref<number | null>(null);
 const uploadFolder = ref<Misskey.entities.DriveFolder | null>(null);
-const alwaysMarkNsfw = ref($i.alwaysMarkNsfw);
+const defaultSensitive = ref($i.defaultSensitive);
 
 const meterStyle = computed(() => {
 	if (!capacity.value || !usage.value) return {};
@@ -127,14 +127,14 @@ function chooseUploadFolder() {
 
 function saveProfile() {
 	misskeyApi('i/update', {
-		alwaysMarkNsfw: !!alwaysMarkNsfw.value,
+		defaultSensitive: !!defaultSensitive.value,
 	}).catch(err => {
 		os.alert({
 			type: 'error',
 			title: i18n.ts.error,
 			text: err.message,
 		});
-		alwaysMarkNsfw.value = true;
+		defaultSensitive.value = true;
 	});
 }
 
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index c02295d444..941c31455f 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -3994,6 +3994,7 @@ export type components = {
       injectFeaturedNote: boolean;
       receiveAnnouncementEmail: boolean;
       alwaysMarkNsfw: boolean;
+      defaultSensitive: boolean;
       autoSensitive: boolean;
       carefulBot: boolean;
       autoAcceptFollowed: boolean;
@@ -20545,6 +20546,7 @@ export type operations = {
           injectFeaturedNote?: boolean;
           receiveAnnouncementEmail?: boolean;
           alwaysMarkNsfw?: boolean;
+          defaultSensitive?: boolean;
           autoSensitive?: boolean;
           /** @enum {string} */
           followingVisibility?: 'public' | 'followers' | 'private';