diff --git a/CHANGELOG_YOJO.md b/CHANGELOG_YOJO.md
index 45c0ed95b5..0b55856162 100644
--- a/CHANGELOG_YOJO.md
+++ b/CHANGELOG_YOJO.md
@@ -23,7 +23,7 @@
 -
 
 ### Client
--
+- Fix: 非ログインでリバーシの戦績が見れない不具合の修正 [#404](https://github.com/yojo-art/cherrypick/pull/404)
 
 ### Server
 -
diff --git a/packages/frontend/src/pages/reversi/game.board.vue b/packages/frontend/src/pages/reversi/game.board.vue
index 7c3c55c7f7..a26d8a9f2d 100644
--- a/packages/frontend/src/pages/reversi/game.board.vue
+++ b/packages/frontend/src/pages/reversi/game.board.vue
@@ -154,7 +154,6 @@ import MkFolder from '@/components/MkFolder.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import { deepClone } from '@/scripts/clone.js';
 import { useInterval } from '@/scripts/use-interval.js';
-import { signinRequired } from '@/account.js';
 import { url } from '@/config.js';
 import { i18n } from '@/i18n.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
@@ -164,8 +163,7 @@ import * as os from '@/os.js';
 import { confetti } from '@/scripts/confetti.js';
 import { defaultStore } from '@/store.js';
 import { getStaticImageUrl } from '@/scripts/media-proxy.js';
-
-const $i = signinRequired();
+import { $i } from '@/account.js';
 
 const props = defineProps<{
 	game: Misskey.entities.ReversiGameDetailed;
@@ -187,13 +185,13 @@ const engine = shallowRef<Reversi.Game>(Reversi.Serializer.restoreGame({
 }));
 
 const iAmPlayer = computed(() => {
-	return game.value.user1Id === $i.id || game.value.user2Id === $i.id;
+	return game.value.user1Id === $i?.id || game.value.user2Id === $i?.id;
 });
 
 const myColor = computed(() => {
 	if (!iAmPlayer.value) return null;
-	if (game.value.user1Id === $i.id && game.value.black === 1) return true;
-	if (game.value.user2Id === $i.id && game.value.black === 2) return true;
+	if (game.value.user1Id === $i?.id && game.value.black === 1) return true;
+	if (game.value.user2Id === $i?.id && game.value.black === 2) return true;
 	return false;
 });
 
@@ -224,7 +222,7 @@ const isMyTurn = computed(() => {
 	if (!iAmPlayer.value) return false;
 	const u = turnUser.value;
 	if (u == null) return false;
-	return u.id === $i.id;
+	return u.id === $i?.id;
 });
 
 const isFederation = computed(() => {
@@ -376,7 +374,7 @@ async function onStreamLog(log) {
 function onStreamEnded(x) {
 	game.value = deepClone(x.game);
 
-	if (game.value.winnerId === $i.id) {
+	if (game.value.winnerId === $i?.id) {
 		confetti({
 			duration: 1000 * 3,
 		});
diff --git a/packages/frontend/src/pages/reversi/game.setting.vue b/packages/frontend/src/pages/reversi/game.setting.vue
index f6811ed973..05ab2016c1 100644
--- a/packages/frontend/src/pages/reversi/game.setting.vue
+++ b/packages/frontend/src/pages/reversi/game.setting.vue
@@ -114,7 +114,6 @@ import { computed, watch, ref, onMounted, shallowRef, onUnmounted } from 'vue';
 import * as Misskey from 'cherrypick-js';
 import * as Reversi from 'misskey-reversi';
 import { i18n } from '@/i18n.js';
-import { signinRequired } from '@/account.js';
 import { deepClone } from '@/scripts/clone.js';
 import MkButton from '@/components/MkButton.vue';
 import MkRadios from '@/components/MkRadios.vue';
@@ -123,8 +122,7 @@ import MkFolder from '@/components/MkFolder.vue';
 import * as os from '@/os.js';
 import { MenuItem } from '@/types/menu.js';
 import { useRouter } from '@/router/supplier.js';
-
-const $i = signinRequired();
+import { $i } from '@/account.js';
 
 const router = useRouter();
 
@@ -222,7 +220,7 @@ function updateSettings(key: keyof Misskey.entities.ReversiGameDetailed) {
 }
 
 function onUpdateSettings({ userId, key, value }: { userId: string; key: keyof Misskey.entities.ReversiGameDetailed; value: any; }) {
-	if (userId === $i.id) return;
+	if (userId === $i?.id) return;
 	if (game.value[key] === value) return;
 	game.value[key] = value;
 	if (isReady.value) {
diff --git a/packages/frontend/src/pages/reversi/game.vue b/packages/frontend/src/pages/reversi/game.vue
index 5e04312365..75de4da111 100644
--- a/packages/frontend/src/pages/reversi/game.vue
+++ b/packages/frontend/src/pages/reversi/game.vue
@@ -17,14 +17,12 @@ import GameBoard from './game.board.vue';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import { useStream } from '@/stream.js';
-import { signinRequired } from '@/account.js';
 import { useRouter } from '@/router/supplier.js';
 import * as os from '@/os.js';
 import { url } from '@/config.js';
 import { i18n } from '@/i18n.js';
 import { useInterval } from '@/scripts/use-interval.js';
-
-const $i = signinRequired();
+import { $i } from '@/account.js';
 
 const router = useRouter();
 
@@ -74,7 +72,7 @@ async function fetchGame() {
 		connection.value.on('canceled', x => {
 			connection.value?.dispose();
 
-			if (x.userId !== $i.id) {
+			if (x.userId !== $i?.id) {
 				os.alert({
 					type: 'warning',
 					text: i18n.ts._reversi.gameCanceled,