diff --git a/locales/index.d.ts b/locales/index.d.ts
index 6d147d6f34..a9a08d778a 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -5190,6 +5190,10 @@ export interface Locale extends ILocale {
      * 名前に禁止されている文字列が含まれています。この名前を使用したい場合は、サーバー管理者にお問い合わせください。
      */
     "yourNameContainsProhibitedWordsDescription": string;
+    /**
+     * このコンテンツの閲覧にはログインが必要と作者によって設定されています
+     */
+    "thisContentsAreMarkedAsSigninRequiredByAuthor": string;
     "_accountSettings": {
         /**
          * コンテンツの閲覧にログインを必須にする
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 2a6768b96d..5e04e71861 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1293,6 +1293,7 @@ prohibitedWordsForNameOfUser: "禁止ワード（ユーザーの名前）"
 prohibitedWordsForNameOfUserDescription: "このリストに含まれる文字列がユーザーの名前に含まれる場合、ユーザーの名前の変更を拒否します。モデレーター権限を持つユーザーはこの制限の影響を受けません。"
 yourNameContainsProhibitedWords: "変更しようとした名前に禁止された文字列が含まれています"
 yourNameContainsProhibitedWordsDescription: "名前に禁止されている文字列が含まれています。この名前を使用したい場合は、サーバー管理者にお問い合わせください。"
+thisContentsAreMarkedAsSigninRequiredByAuthor: "このコンテンツの閲覧にはログインが必要と作者によって設定されています"
 
 _accountSettings:
   signinRequiredForShowContents: "コンテンツの閲覧にログインを必須にする"
diff --git a/packages/backend/src/server/api/GetterService.ts b/packages/backend/src/server/api/GetterService.ts
index bff3ab96f3..444e6db744 100644
--- a/packages/backend/src/server/api/GetterService.ts
+++ b/packages/backend/src/server/api/GetterService.ts
@@ -39,6 +39,17 @@ export class GetterService {
 		return note;
 	}
 
+	@bindThis
+	public async getNoteWithUser(noteId: MiNote['id']) {
+		const note = await this.notesRepository.findOne({ where: { id: noteId }, relations: ['user'] });
+
+		if (note == null) {
+			throw new IdentifiableError('9725d0ce-ba28-4dde-95a7-2cbb2c15de24', 'No such note.');
+		}
+
+		return note;
+	}
+
 	/**
 	 * Get user for API processing
 	 */
diff --git a/packages/backend/src/server/api/endpoints/notes/show.ts b/packages/backend/src/server/api/endpoints/notes/show.ts
index d8b6a6ff5f..e841a3b102 100644
--- a/packages/backend/src/server/api/endpoints/notes/show.ts
+++ b/packages/backend/src/server/api/endpoints/notes/show.ts
@@ -50,7 +50,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private getterService: GetterService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const note = await this.getterService.getNote(ps.noteId).catch(err => {
+			const note = await this.getterService.getNoteWithUser(ps.noteId).catch(err => {
 				if (err.id === '9725d0ce-ba28-4dde-95a7-2cbb2c15de24') throw new ApiError(meta.errors.noSuchNote);
 				throw err;
 			});
diff --git a/packages/frontend/src/components/MkFollowButton.vue b/packages/frontend/src/components/MkFollowButton.vue
index ccea7cd453..cc07175907 100644
--- a/packages/frontend/src/components/MkFollowButton.vue
+++ b/packages/frontend/src/components/MkFollowButton.vue
@@ -37,13 +37,13 @@ SPDX-License-Identifier: AGPL-3.0-only
 <script lang="ts" setup>
 import { onBeforeUnmount, onMounted, ref } from 'vue';
 import * as Misskey from 'misskey-js';
+import { host } from '@@/js/config.js';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { useStream } from '@/stream.js';
 import { i18n } from '@/i18n.js';
 import { claimAchievement } from '@/scripts/achievements.js';
 import { pleaseLogin } from '@/scripts/please-login.js';
-import { host } from '@@/js/config.js';
 import { $i } from '@/account.js';
 import { defaultStore } from '@/store.js';
 
@@ -80,7 +80,7 @@ function onFollowChange(user: Misskey.entities.UserDetailed) {
 }
 
 async function onClick() {
-	pleaseLogin(undefined, { type: 'web', path: `/@${props.user.username}@${props.user.host ?? host}` });
+	pleaseLogin({ openOnRemote: { type: 'web', path: `/@${props.user.username}@${props.user.host ?? host}` } });
 
 	wait.value = true;
 
diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index 828ad2e872..425c4992da 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -419,7 +419,7 @@ if (!props.mock) {
 }
 
 function renote(viaKeyboard = false) {
-	pleaseLogin(undefined, pleaseLoginContext.value);
+	pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 	showMovedDialog();
 
 	const { menu } = getRenoteMenu({ note: note.value, renoteButton, mock: props.mock });
@@ -429,7 +429,7 @@ function renote(viaKeyboard = false) {
 }
 
 function reply(): void {
-	pleaseLogin(undefined, pleaseLoginContext.value);
+	pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 	if (props.mock) {
 		return;
 	}
@@ -442,7 +442,7 @@ function reply(): void {
 }
 
 function react(): void {
-	pleaseLogin(undefined, pleaseLoginContext.value);
+	pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 	showMovedDialog();
 	if (appearNote.value.reactionAcceptance === 'likeOnly') {
 		sound.playMisskeySfx('reaction');
@@ -563,7 +563,7 @@ function showRenoteMenu(): void {
 	}
 
 	if (isMyRenote) {
-		pleaseLogin(undefined, pleaseLoginContext.value);
+		pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 		os.popupMenu([
 			getCopyNoteLinkMenu(note.value, i18n.ts.copyLinkRenote),
 			{ type: 'divider' },
diff --git a/packages/frontend/src/components/MkNoteDetailed.vue b/packages/frontend/src/components/MkNoteDetailed.vue
index 6d53685651..e0473dce5e 100644
--- a/packages/frontend/src/components/MkNoteDetailed.vue
+++ b/packages/frontend/src/components/MkNoteDetailed.vue
@@ -207,6 +207,7 @@ import { computed, inject, onMounted, provide, ref, shallowRef } from 'vue';
 import * as mfm from 'mfm-js';
 import * as Misskey from 'misskey-js';
 import { isLink } from '@@/js/is-link.js';
+import { host } from '@@/js/config.js';
 import MkNoteSub from '@/components/MkNoteSub.vue';
 import MkNoteSimple from '@/components/MkNoteSimple.vue';
 import MkReactionsViewer from '@/components/MkReactionsViewer.vue';
@@ -230,7 +231,6 @@ import { reactionPicker } from '@/scripts/reaction-picker.js';
 import { extractUrlFromMfm } from '@/scripts/extract-url-from-mfm.js';
 import { $i } from '@/account.js';
 import { i18n } from '@/i18n.js';
-import { host } from '@@/js/config.js';
 import { getNoteClipMenu, getNoteMenu, getRenoteMenu } from '@/scripts/get-note-menu.js';
 import { useNoteCapture } from '@/scripts/use-note-capture.js';
 import { deepClone } from '@/scripts/clone.js';
@@ -404,7 +404,7 @@ if (appearNote.value.reactionAcceptance === 'likeOnly') {
 }
 
 function renote() {
-	pleaseLogin(undefined, pleaseLoginContext.value);
+	pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 	showMovedDialog();
 
 	const { menu } = getRenoteMenu({ note: note.value, renoteButton });
@@ -412,7 +412,7 @@ function renote() {
 }
 
 function reply(): void {
-	pleaseLogin(undefined, pleaseLoginContext.value);
+	pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 	showMovedDialog();
 	os.post({
 		reply: appearNote.value,
@@ -423,7 +423,7 @@ function reply(): void {
 }
 
 function react(): void {
-	pleaseLogin(undefined, pleaseLoginContext.value);
+	pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 	showMovedDialog();
 	if (appearNote.value.reactionAcceptance === 'likeOnly') {
 		sound.playMisskeySfx('reaction');
@@ -499,7 +499,7 @@ async function clip(): Promise<void> {
 
 function showRenoteMenu(): void {
 	if (!isMyRenote) return;
-	pleaseLogin(undefined, pleaseLoginContext.value);
+	pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 	os.popupMenu([{
 		text: i18n.ts.unrenote,
 		icon: 'ti ti-trash',
diff --git a/packages/frontend/src/components/MkPoll.vue b/packages/frontend/src/components/MkPoll.vue
index 48913004e0..e70ac7ff1a 100644
--- a/packages/frontend/src/components/MkPoll.vue
+++ b/packages/frontend/src/components/MkPoll.vue
@@ -29,14 +29,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 <script lang="ts" setup>
 import { computed, ref } from 'vue';
 import * as Misskey from 'misskey-js';
+import { host } from '@@/js/config.js';
+import { useInterval } from '@@/js/use-interval.js';
 import type { OpenOnRemoteOptions } from '@/scripts/please-login.js';
 import { sum } from '@/scripts/array.js';
 import { pleaseLogin } from '@/scripts/please-login.js';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { i18n } from '@/i18n.js';
-import { host } from '@@/js/config.js';
-import { useInterval } from '@@/js/use-interval.js';
 
 const props = defineProps<{
 	noteId: string;
@@ -85,7 +85,7 @@ if (props.poll.expiresAt) {
 const vote = async (id) => {
 	if (props.readOnly || closed.value || isVoted.value) return;
 
-	pleaseLogin(undefined, pleaseLoginContext.value);
+	pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 
 	const { canceled } = await os.confirm({
 		type: 'question',
diff --git a/packages/frontend/src/os.ts b/packages/frontend/src/os.ts
index 4d41cf5bc0..07d91a0644 100644
--- a/packages/frontend/src/os.ts
+++ b/packages/frontend/src/os.ts
@@ -688,14 +688,16 @@ export function contextMenu(items: MenuItem[], ev: MouseEvent): Promise<void> {
 }
 
 export function post(props: Record<string, any> = {}): Promise<void> {
-	pleaseLogin(undefined, (props.initialText || props.initialNote ? {
-		type: 'share',
-		params: {
-			text: props.initialText ?? props.initialNote.text,
-			visibility: props.initialVisibility ?? props.initialNote?.visibility,
-			localOnly: (props.initialLocalOnly || props.initialNote?.localOnly) ? '1' : '0',
-		},
-	} : undefined));
+	pleaseLogin({
+		openOnRemote: (props.initialText || props.initialNote ? {
+			type: 'share',
+			params: {
+				text: props.initialText ?? props.initialNote.text,
+				visibility: props.initialVisibility ?? props.initialNote?.visibility,
+				localOnly: (props.initialLocalOnly || props.initialNote?.localOnly) ? '1' : '0',
+			},
+		} : undefined),
+	});
 
 	showMovedDialog();
 	return new Promise(resolve => {
diff --git a/packages/frontend/src/pages/not-found.vue b/packages/frontend/src/pages/not-found.vue
index 93a792c42f..6a2d01b6fa 100644
--- a/packages/frontend/src/pages/not-found.vue
+++ b/packages/frontend/src/pages/not-found.vue
@@ -24,7 +24,7 @@ const props = defineProps<{
 }>();
 
 if (props.showLoginPopup) {
-	pleaseLogin('/');
+	pleaseLogin({ path: '/' });
 }
 
 const headerActions = computed(() => []);
diff --git a/packages/frontend/src/pages/note.vue b/packages/frontend/src/pages/note.vue
index 448244204d..b0885433e4 100644
--- a/packages/frontend/src/pages/note.vue
+++ b/packages/frontend/src/pages/note.vue
@@ -61,6 +61,7 @@ import { i18n } from '@/i18n.js';
 import { dateString } from '@/filters/date.js';
 import MkClipPreview from '@/components/MkClipPreview.vue';
 import { defaultStore } from '@/store.js';
+import { pleaseLogin } from '@/scripts/please-login';
 
 const props = defineProps<{
 	noteId: string;
@@ -128,6 +129,11 @@ function fetchNote() {
 			});
 		}
 	}).catch(err => {
+		if (err.id === '8e75455b-738c-471d-9f80-62693f33372e') {
+			pleaseLogin({
+				message: i18n.ts.thisContentsAreMarkedAsSigninRequiredByAuthor,
+			});
+		}
 		error.value = err;
 	});
 }
diff --git a/packages/frontend/src/scripts/please-login.ts b/packages/frontend/src/scripts/please-login.ts
index 18f05bc7f4..43dcf11936 100644
--- a/packages/frontend/src/scripts/please-login.ts
+++ b/packages/frontend/src/scripts/please-login.ts
@@ -44,17 +44,21 @@ export type OpenOnRemoteOptions = {
 	params: Record<string, string>;
 };
 
-export function pleaseLogin(path?: string, openOnRemote?: OpenOnRemoteOptions) {
+export function pleaseLogin(opts: {
+	path?: string;
+	message?: string;
+	openOnRemote?: OpenOnRemoteOptions;
+} = {}) {
 	if ($i) return;
 
 	const { dispose } = popup(defineAsyncComponent(() => import('@/components/MkSigninDialog.vue')), {
 		autoSet: true,
-		message: openOnRemote ? i18n.ts.signinOrContinueOnRemote : i18n.ts.signinRequired,
-		openOnRemote,
+		message: opts.message ?? (opts.openOnRemote ? i18n.ts.signinOrContinueOnRemote : i18n.ts.signinRequired),
+		openOnRemote: opts.openOnRemote,
 	}, {
 		cancelled: () => {
-			if (path) {
-				window.location.href = path;
+			if (opts.path) {
+				window.location.href = opts.path;
 			}
 		},
 		closed: () => dispose(),