diff --git a/packages/frontend/src/boot/main-boot.ts b/packages/frontend/src/boot/main-boot.ts
index 3d4ecbf75b..77a5b0df19 100644
--- a/packages/frontend/src/boot/main-boot.ts
+++ b/packages/frontend/src/boot/main-boot.ts
@@ -405,7 +405,13 @@ export async function mainBoot() {
 			allowRepeat: true,
 		},
 	} as const satisfies Keymap;
-	window.document.addEventListener('keydown', makeHotkey(keymap), { passive: false });
+	const listener = makeHotkey(keymap);
+	window.document.addEventListener('keydown', listener, { passive: false });
+
+	// TODO: よりマシな無効化方法を提供する
+	(window as any).disableGlobalHotkeys = () => {
+		window.document.removeEventListener('keydown', listener);
+	};
 
 	initializeSw();
 }
diff --git a/packages/frontend/src/pages/rooms/room.core.vue b/packages/frontend/src/pages/rooms/room.core.vue
index c4f16bab0f..ea51b9ea1b 100644
--- a/packages/frontend/src/pages/rooms/room.core.vue
+++ b/packages/frontend/src/pages/rooms/room.core.vue
@@ -315,6 +315,9 @@ onMounted(async () => {
 	watch([graphicsQuality, fps, resolution, antialias], () => {
 		refresh();
 	});
+
+	// canvasからフォーカスが外れていることに気づかずsとか押してしまうと検索画面が開かれてroomの状態が失われたりするので無効化
+	(window as any).disableGlobalHotkeys();
 });
 
 onDeactivated(() => {