Betrothed to My Sister's Ex

Betrothed to My Sister's Ex (2025)

Animation Comedy Drama

Marie, the second daughter of a poor baron’s household, is treated like a servant by her parents. Even at Marie’s birthday party, her beautiful elder sister, Anastasia, is the star. Outside, Marie bumps into Count Kyuros Granado, who falls for her at first sight. Yet, due to a misunderstanding, the Count proposes to Anastasia. After a tragic accident, Marie must marry the count instead!

star 8.3
  • First Air Date: 2025-07-05
  • Last Air Date: 2025-09-20
  • Total Seasons: 1
  • Total Episodes: 12
  • Network: MBS, TBS, CBC

Where to Watch Betrothed to My Sister's Ex Online

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Seasons

  • Season 1

    12 Episodes

Trailer

Cast

  • Rena Motomura

    Marie (voice)

  • Daiki Hamano

    Kyros (voice)

  • Minami Tanaka

    Anastasia (voice)

  • Ryohei Kimura

    Louisphon (voice)

  • Yoko Hikasa

    Mio (voice)

  • Sayaka Ohara

    Ryu Ryu (voice)

  • Tetsuya Kakihara

    Toppo (voice)

  • Tatsuyuki Kobayashi

    Thomas (voice)

  • Yuuka Aisaka

    Tunica (voice)

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