Op.7 was the fifth live by the IDOLiSH7 franchise. It was also IDOLiSH7's first group solo live, held at the Saitama Super Arena.
増田俊樹
as Iori Izumi
白井悠介
as Yamato Nikaido
代永翼
as Mitsuki Izumi
KENN
as Tamaki Yotsuba
阿部敦
as Sogo Osaka
江口拓也
as Nagi Rokuya
小野賢章
as Riku Nanase
