NISHIYAMA Kotaro 西山宏太朗 [ Cast ] IDOLiSH7 the Movie; LIVE 4bit BEYOND THE PERiOD ＜DAY 2＞ (2023) -- NATSUME MinamiIDOLiSH7 the Movie; LIVE 4bit BEYOND THE PERiOD ＜DAY 1＞ (2023) -- NATSUME Minami