元乃木坂46の斉藤優里が新アイドルグループを発表! 2024/4/7 斉藤優里 元乃木坂46の斉藤優里が新アイドルグループを発表! Yuri Saito, a former member of Nogizaka46, appeared at “321 Summer Festival 2023” held at Toyosu PIT in Koto-ku, Tokyo, …