diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index 6e35d1dba9..cee1e400e6 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -415,11 +415,7 @@ provide(DI.mfmEmojiReactCallback, (reaction) => {
 	});
 });
 
-if (props.mock) {
-	watch(() => props.note, (to) => {
-		note = deepClone(to);
-	}, { deep: true });
-} else {
+if (!props.mock) {
 	useNoteCapture({
 		note: appearNote,
 		parentNote: note,
@@ -540,6 +536,9 @@ function react(): void {
 
 			if (props.mock) {
 				emit('reaction', reaction);
+				$appearNote.reactions[reaction] = 1;
+				$appearNote.reactionCount++;
+				$appearNote.myReaction = reaction;
 				return;
 			}
 
diff --git a/packages/frontend/src/components/MkTutorialDialog.Note.vue b/packages/frontend/src/components/MkTutorialDialog.Note.vue
index 59e1b096ae..95f53e7635 100644
--- a/packages/frontend/src/components/MkTutorialDialog.Note.vue
+++ b/packages/frontend/src/components/MkTutorialDialog.Note.vue
@@ -76,8 +76,6 @@ const onceReacted = ref<boolean>(false);
 function addReaction(emoji) {
 	onceReacted.value = true;
 	emit('reacted');
-	exampleNote.reactions[emoji] = 1;
-	exampleNote.myReaction = emoji;
 	doNotification(emoji);
 }