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Betrothed to My Sister's Ex

Original title: ずたぼろ令嬢は姉の元婚約者に溺愛される

★ 8.0 TMDB Rating · 32 votes

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!

Seasons
1
Episodes
12
First aired
Jul 5, 2025
Networks
MBS, TBS, CBC
Original language
Japanese
Origin
Japan

Cast of Betrothed to My Sister's Ex

  • Portrait of Rena Motomura

    Rena Motomura

    Marie (voice)

  • Portrait of Daiki Hamano

    Daiki Hamano

    Kyros (voice)

  • Portrait of Minami Tanaka

    Minami Tanaka

    Anastasia (voice)

  • Portrait of Ryohei Kimura

    Ryohei Kimura

    Louisphon (voice)

  • Portrait of Yoko Hikasa

    Yoko Hikasa

    Mio (voice)

  • Portrait of Sayaka Ohara

    Sayaka Ohara

    Ryu Ryu (voice)

  • Portrait of Tetsuya Kakihara

    Tetsuya Kakihara

    Toppo (voice)

  • Portrait of Tatsuyuki Kobayashi

    Tatsuyuki Kobayashi

    Thomas (voice)

  • Portrait of Yuuka Aisaka

    Yuuka Aisaka

    Tunica (voice)

Where to Stream Betrothed to My Sister's Ex by Country

United States
Streaming on CrunchyrollRent or buy on Amazon Video, Apple TV Store
United Kingdom
Streaming on CrunchyrollRent or buy on Apple TV Store
India
Streaming on Crunchyroll, SonyLIV
Canada
Streaming on CrunchyrollRent or buy on Apple TV Store
Australia
Streaming on CrunchyrollRent or buy on Apple TV Store

Availability data from JustWatch. Catalogues change often, so check the service before you press play.

Seasons

  • Poster for Season 1 of Betrothed to My Sister's Ex

    Season 1

    Jul 5, 2025

    12 episodes

Betrothed to My Sister's Ex Trailer

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