The Shiunji family with their seven children reside in a mansion within Tokyo’s Setagaya ward. The eldest son, Arata, is tired of being pushed around by his five sisters and daydreams of a life without them. That is, until Arata’s father reveals a shocking truth—Arata isn’t biologically related to his sisters! The siblings’ relationships will be tested as they navigate life in this new light.

Cast

Yuuichirou Umehara

Chika Anzai

Marika Kouno

Rie Takahashi

Hana Hishikawa

Kana Ichinose