diff --git a/packages/backend/src/models/repositories/note.ts b/packages/backend/src/models/repositories/note.ts
index 882cfdd318..ca284b9237 100644
--- a/packages/backend/src/models/repositories/note.ts
+++ b/packages/backend/src/models/repositories/note.ts
@@ -12,7 +12,6 @@ import {
 	Channels,
 } from "../index.js";
 import type { Packed } from "@/misc/schema.js";
-import { nyaize } from "@/misc/nyaize.js";
 import { awaitAll } from "@/prelude/await-all.js";
 import {
 	convertLegacyReaction,
@@ -263,7 +262,7 @@ export const NoteRepository = db.getRepository(Note).extend({
 				: {}),
 		});
 
-		if (packed.user.isCat && packed.text) {
+		/* if (packed.user.isCat && packed.text) {
 			const tokens = packed.text ? mfm.parse(packed.text) : [];
 			mfm.inspect(tokens, (node) => {
 				if (node.type === "text") {
@@ -272,7 +271,7 @@ export const NoteRepository = db.getRepository(Note).extend({
 				}
 			});
 			packed.text = mfm.toString(tokens);
-		}
+		} */
 
 		return packed;
 	},
diff --git a/packages/client/src/components/MkPostForm.vue b/packages/client/src/components/MkPostForm.vue
index 7ce990b214..f72423d13e 100644
--- a/packages/client/src/components/MkPostForm.vue
+++ b/packages/client/src/components/MkPostForm.vue
@@ -91,6 +91,7 @@ import { instance } from '@/instance';
 import { $i, getAccounts, openAccountMenu as openAccountMenu_ } from '@/account';
 import { uploadFile } from '@/scripts/upload';
 import { deepClone } from '@/scripts/clone';
+import { nyaize } from '@/scripts/nyaize';
 import XCheatSheet from '@/components/MkCheatSheetDialog.vue';
 
 const modal = inject('modal');
@@ -582,6 +583,10 @@ async function post() {
 		}
 	}
 
+	if ($i?.isCat) {
+		postData.text = nyaize(`${postData.text}`);
+	}
+
 	let token = undefined;
 
 	if (postAccount) {
diff --git a/packages/backend/src/misc/nyaize.ts b/packages/client/src/scripts/nyaize.ts
similarity index 100%
rename from packages/backend/src/misc/nyaize.ts
rename to packages/client/src/scripts/nyaize.ts