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 and episodes
1 season · 12 episodes
S1 E1I Could Never Replace My Sister
Jul 5, 202525 min
Marie is always dressed in tatters and is treated like a servant in her own home. Then she meets Count Kyros.
S1 E2Marie, I Want to Marry You
Jul 12, 202525 min
Kyros hates aristocratic society and its ties of obligation. But why? And what changed when he met Marie?
S1 E3A Life I Saw in a Dream, and a Dream-like Life
Jul 19, 202525 min
Marie begins her new life as Kyros' fiancée and finds herself bewildered by the differences from her old life.
S1 E4I've Found the Things I Like
Jul 26, 202525 min
Kyros wants to provide Marie with every comfort, but Mio cautions him. Then a package from the baron arrives.
S1 E5The Prince and the Pitch-Black Warrior
Aug 2, 202525 min
Luiphon takes Marie to a sword fighting contest. The ferocity of it scares her. Then the dark warrior fights.
S1 E6Am I Enough As I Am?
Aug 9, 202525 min
Liu Liu, Kyros' mother, discovers surprising things about Marie. Mio investigates the baron on Kyros' orders.
Starring
Frequently asked questions
- Where can I watch Betrothed to My Sister's Ex?
- Betrothed to My Sister's Ex is streaming on Crunchyroll. It can also be rented or bought on Amazon Video, Apple TV Store. Availability is refreshed weekly.
- How many seasons of Betrothed to My Sister's Ex are there?
- Betrothed to My Sister's Ex has 1 season and 12 episodes. Status: Ended.
- Will there be a new season of Betrothed to My Sister's Ex?
- Betrothed to My Sister's Ex has ended; no new episodes are scheduled. The final episode aired on September 20, 2025.
- Who stars in Betrothed to My Sister's Ex?
- Betrothed to My Sister's Ex stars Rena Motomura, Daiki Hamano, Minami Tanaka, Ryohei Kimura, Yoko Hikasa.
