diff --git a/packages/backend/src/server/api/stream/types.ts b/packages/backend/src/server/api/stream/types.ts
index 837f42c871..b35c599bde 100644
--- a/packages/backend/src/server/api/stream/types.ts
+++ b/packages/backend/src/server/api/stream/types.ts
@@ -135,6 +135,9 @@ export interface NoteStreamTypes {
 		reaction: string;
 		userId: User["id"];
 	};
+	replied: {
+		id: Note["id"];
+	};
 }
 type NoteStreamEventTypes = {
 	[key in keyof NoteStreamTypes]: {
diff --git a/packages/backend/src/services/note/create.ts b/packages/backend/src/services/note/create.ts
index 210ea77710..b37b160fbe 100644
--- a/packages/backend/src/services/note/create.ts
+++ b/packages/backend/src/services/note/create.ts
@@ -1,6 +1,6 @@
 import * as mfm from "mfm-js";
 import es from "../../db/elasticsearch.js";
-import { publishMainStream, publishNotesStream } from "@/services/stream.js";
+import { publishMainStream, publishNotesStream, publishNoteStream } from "@/services/stream.js";
 import DeliverManager from "@/remote/activitypub/deliver-manager.js";
 import renderNote from "@/remote/activitypub/renderer/note.js";
 import renderCreate from "@/remote/activitypub/renderer/create.js";
@@ -430,6 +430,12 @@ export default async (
 			}
 
 			publishNotesStream(note);
+			if (note.replyId != null) {
+				// Only provide the reply note id here as the recipient may not be authorized to see the note.
+				publishNoteStream(note.replyId, "replied", {
+					id: note.id,
+				});
+			}
 
 			const webhooks = await getActiveWebhooks().then((webhooks) =>
 				webhooks.filter((x) => x.userId === user.id && x.on.includes("note")),
diff --git a/packages/client/src/components/MkNoteDetailed.vue b/packages/client/src/components/MkNoteDetailed.vue
index dd6187d7e4..fab06f1ab6 100644
--- a/packages/client/src/components/MkNoteDetailed.vue
+++ b/packages/client/src/components/MkNoteDetailed.vue
@@ -142,6 +142,8 @@ import { i18n } from '@/i18n';
 import { getNoteMenu } from '@/scripts/get-note-menu';
 import { useNoteCapture } from '@/scripts/use-note-capture';
 import { deepClone } from '@/scripts/clone';
+import { stream } from '@/stream';
+import { NoteUpdatedEvent } from 'calckey-js/built/streaming.types';
 
 const router = useRouter();
 
@@ -302,6 +304,31 @@ if (appearNote.replyId) {
 		conversation.value = res.reverse();
 	});
 }
+
+function onNoteReplied(noteData: NoteUpdatedEvent): void {
+	const { type, id, body } = noteData;
+	if (type === 'replied' && id === appearNote.id) {
+		const { id: createdId } = body;
+
+		os.api('notes/show', {
+			noteId: createdId,
+		}).then(note => {
+			if (note.replyId === appearNote.id) {
+				replies.value.unshift(note);
+				directReplies.value.unshift(note);
+			}
+		});
+	}
+	
+}
+
+onMounted(() => {
+	stream.on("noteUpdated", onNoteReplied);
+});
+
+onUnmounted(() => {
+	stream.off("noteUpdated", onNoteReplied);
+});
 </script>
 
 <style lang="scss" scoped>