• Air date: 08 Apr '25 12 episodes
      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.
  • List of Episodes (12)
    • 1. What If...?

      08 Apr '25
      Arata (16), the 3rd of 7 siblings and oldest son of the Shiunji family, dreams of a different life until...
    • 2. Now What

      15 Apr '25
      How will the siblings come to terms with the news?
    • 3. For Now

      22 Apr '25
      The gang heads to an amusement park to celebrate Kotono's birthday!
    • 4. Respectively

      29 Apr '25
      After Ouka's confession, Minami and Banri want to find out if anything has changed for Arata.
    • 5. Perhaps

      06 May '25
      Kotono's suspicions continue to grow. Meanwhile, Seiha has a theory and demands to test it out.
    • 6. Now's the Time

      13 May '25
      Minami's distractions catch up to her in the lead-up to her inter-highs.
    • 7. Surely

      20 May '25
      Where is Minami, and what comes of the tournament finals?
    • 8. Since Then

      27 May '25
      Minami deals with the aftermath, and Banri needs someone to help her.
    • 9. Not Yet

      03 Jun '25
      Ouka's gone AWOL, and the gang must figure out what's going on.
    • 10. Finally

      10 Jun '25
      Arata has found Ouka, but what next? And how will the rest of the family respond?
    • 11. So Then

      17 Jun '25
      The kids hit up their dad's summer villa in Karuizawa for a chill holiday, but things heat up for Arata!
    • 12. Still

      24 Jun '25
      As the family trip draws to a close, the siblings each come to terms with their bonds in their own way.