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.
Arata (16), the 3rd of 7 siblings and oldest son of the Shiunji family, dreams of a different life until...
How will the siblings come to terms with the news?
The gang heads to an amusement park to celebrate Kotono's birthday!
After Ouka's confession, Minami and Banri want to find out if anything has changed for Arata.
Kotono's suspicions continue to grow. Meanwhile, Seiha has a theory and demands to test it out.
Minami's distractions catch up to her in the lead-up to her inter-highs.
Where is Minami, and what comes of the tournament finals?
Minami deals with the aftermath, and Banri needs someone to help her.
Ouka's gone AWOL, and the gang must figure out what's going on.
Arata has found Ouka, but what next? And how will the rest of the family respond?
The kids hit up their dad's summer villa in Karuizawa for a chill holiday, but things heat up for Arata!
As the family trip draws to a close, the siblings each come to terms with their bonds in their own way.
