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.
Episodes Season Season 1 · 0/12 0/12 watched · 2025
S01E01 What If...? 2025-04-08 24m
Arata (16), the 3rd of 7 siblings and oldest son of the Shiunji family, dreams of a different life until... more S01E02 Now What 2025-04-15 24m
How will the siblings come to terms with the news? more S01E03 For Now 2025-04-22 24m
The gang heads to an amusement park to celebrate Kotono's birthday! more S01E04 Respectively 2025-04-29 24m
After Ouka's confession, Minami and Banri want to find out if anything has changed for Arata. more S01E05 Perhaps 2025-05-06 24m
Kotono's suspicions continue to grow. Meanwhile, Seiha has a theory and demands to test it out. more S01E06 Now's the Time 2025-05-13 24m
Minami's distractions catch up to her in the lead-up to her inter-highs. more S01E07 Surely 2025-05-20 24m
Where is Minami, and what comes of the tournament finals? more S01E08 Since Then 2025-05-27 24m
Minami deals with the aftermath, and Banri needs someone to help her. more S01E09 Not Yet 2025-06-03 24m
Ouka's gone AWOL, and the gang must figure out what's going on. more S01E10 Finally 2025-06-10 24m
Arata has found Ouka, but what next? And how will the rest of the family respond? more S01E11 So Then 2025-06-17 24m
The kids hit up their dad's summer villa in Karuizawa for a chill holiday, but things heat up for Arata! more S01E12 Still 2025-06-24 24m
As the family trip draws to a close, the siblings each come to terms with their bonds in their own way. more 
