配信済horse.. horse girls... — first time! umamusume: pretty derby【Kou Mariya】Kou Mariya Ch.【V4Mirai】配信開始2025-07-13 12:59:05配信終了2025-07-13 15:55:56配信時間2:56:51最大視聴者数285人PEAK同時接続数推移グラフ
