diff --git a/packages/backend/native-utils/tests/common.rs b/packages/backend/native-utils/tests/common.rs
index 674297606f..86910bb3da 100644
--- a/packages/backend/native-utils/tests/common.rs
+++ b/packages/backend/native-utils/tests/common.rs
@@ -44,7 +44,6 @@ async fn setup_schema(db: &DbConn) {
         ad,
         announcement_read,
         announcement,
-        antenna_note,
         antenna,
         app,
         attestation_challenge,
diff --git a/packages/backend/native-utils/tests/model/repository/antenna.rs b/packages/backend/native-utils/tests/model/repository/antenna.rs
index 9b03d3652d..e5eaaa7bfc 100644
--- a/packages/backend/native-utils/tests/model/repository/antenna.rs
+++ b/packages/backend/native-utils/tests/model/repository/antenna.rs
@@ -1,13 +1,13 @@
 mod int_test {
-    use native_utils::{database, model, util};
+    use native_utils::{database, model};
 
     use model::{
-        entity::{antenna, antenna_note, note, user},
+        entity::{antenna, user},
         repository::Repository,
         schema,
     };
     use pretty_assertions::assert_eq;
-    use sea_orm::{ActiveModelTrait, ColumnTrait, EntityTrait, IntoActiveModel, QueryFilter};
+    use sea_orm::{ColumnTrait, EntityTrait, QueryFilter};
 
     use crate::{cleanup, prepare};
 
@@ -71,7 +71,7 @@ mod int_test {
         prepare().await;
         let db = database::get_database().unwrap();
 
-        let (alice, alice_antenna) = user::Entity::find()
+        let (_, alice_antenna) = user::Entity::find()
             .filter(user::Column::Username.eq("alice"))
             .find_also_related(antenna::Entity)
             .one(db)
@@ -86,24 +86,6 @@ mod int_test {
             .expect("Unable to pack");
         assert_eq!(packed.has_unread_note, false);
 
-        let note_model = note::Entity::find()
-            .filter(note::Column::UserId.eq(alice.id))
-            .one(db)
-            .await
-            .unwrap()
-            .expect("note not found");
-        let antenna_note = antenna_note::Model {
-            id: util::id::create_id(0).unwrap(),
-            antenna_id: alice_antenna.id.to_owned(),
-            note_id: note_model.id.to_owned(),
-            read: false,
-        };
-        antenna_note
-            .into_active_model()
-            .reset_all()
-            .insert(db)
-            .await
-            .unwrap();
         let packed = alice_antenna
             .to_owned()
             .pack()
diff --git a/packages/backend/src/db/cql.ts b/packages/backend/src/db/cql.ts
index 6d2f73189e..588bcaa4e3 100644
--- a/packages/backend/src/db/cql.ts
+++ b/packages/backend/src/db/cql.ts
@@ -53,6 +53,9 @@ export const scyllaQueries = {
 			byReplyId: `SELECT * FROM note WHERE "replyId" = ?`,
 			byChannelId: `SELECT * FROM note_by_channel_id WHERE "channelId" = ?`,
 		},
+		count: {
+			byUserId: `SELECT COUNT(*) FROM note_by_user_id WHERE "userId" = ?`,
+		},
 		delete: `DELETE FROM note WHERE "createdAtDate" = ? AND "createdAt" = ? AND "userId" = ? AND "userHost" = ? AND "visibility" = ?`,
 		update: {
 			renoteCount: `UPDATE note SET
diff --git a/packages/backend/src/server/api/endpoints/users/stats.ts b/packages/backend/src/server/api/endpoints/users/stats.ts
index 83e821f498..5ade505fe3 100644
--- a/packages/backend/src/server/api/endpoints/users/stats.ts
+++ b/packages/backend/src/server/api/endpoints/users/stats.ts
@@ -11,6 +11,7 @@ import {
 import { awaitAll } from "@/prelude/await-all.js";
 import define from "../../define.js";
 import { ApiError } from "../../error.js";
+import { scyllaClient } from "@/db/scylla.js";
 
 export const meta = {
 	tags: ["users"],
@@ -147,6 +148,32 @@ export const paramDef = {
 } as const;
 
 export default define(meta, paramDef, async (ps, me) => {
+	// FIXME: do we really need this chart?
+	if (scyllaClient) {
+		return {
+			notesCount: 0,
+			repliesCount: 0,
+			renotesCount: 0,
+			repliedCount: 0,
+			renotedCount: 0,
+			pollVotesCount: 0,
+			pollVotedCount: 0,
+			localFollowingCount: 0,
+			remoteFollowingCount: 0,
+			localFollowersCount: 0,
+			remoteFollowersCount: 0,
+			sentReactionsCount: 0,
+			receivedReactionsCount: 0,
+			noteFavoritesCount: 0,
+			pageLikesCount: 0,
+			pageLikedCount: 0,
+			driveFilesCount: 0,
+			driveUsage: 0,
+			followingCount: 0,
+			followersCount: 0,
+		};
+	}
+
 	const user = await Users.findOneBy({ id: ps.userId });
 	if (user == null) {
 		throw new ApiError(meta.errors.noSuchUser);