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!

Betrothed to My Sister’s Ex (2025)

★ 8/10 July 5, 2025 1 season

AnimationComedyDrama

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!

Where to watch

Crunchyroll Crunchyroll Amazon Channel Amazon Video Apple TV Store

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)