Betrothed to My Sister's Ex

Name: Betrothed to My Sister's Ex
Genre: Animation, Comedy, Drama
Released: 2025-07-05
Rating: 8.1
Cast: Rena Motomura, Daiki Hamano, Minami Tanaka, Ryohei Kimura, Yoko Hikasa

2025·Series·TV-14·★ 8.1(28)

Animation Comedy Drama More Japanese titles

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!

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Where to watch Betrothed to My Sister's Ex in United States

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Click a service to open Betrothed to My Sister's Ex there. Availability last verified on June 21, 2026.

Where is Betrothed to My Sister's Ex streaming around the world?

Country	Streaming on	Rent / Buy
United States	Crunchyroll, Crunchyroll Amazon Channel	Amazon Video, Apple TV Store
India	Crunchyroll, Sony Liv, Crunchyroll Amazon Channel, Anime Times Amazon Channel	—
United Kingdom	Crunchyroll, Crunchyroll Amazon Channel	Apple TV Store
Canada	Crunchyroll Amazon Channel, Crunchyroll	Apple TV Store
Australia	Crunchyroll, Crunchyroll Amazon Channel	Apple TV Store
Germany	Crunchyroll, Crunchyroll Amazon Channel	—
France	Crunchyroll, Crunchyroll Amazon Channel	—
Spain	Crunchyroll, Crunchyroll Amazon Channel	—
Brazil	Crunchyroll, Crunchyroll Amazon Channel	—
Japan	Amazon Prime Video, Hulu, U-NEXT, Anime Times Amazon Channel	Amazon Video

About Betrothed to My Sister's Ex

Betrothed to My Sister's Ex is a 2025 Japanese-language animation, comedy and drama series. The cast is led by Rena Motomura, Daiki Hamano, Minami Tanaka. It spans 1 season and 12 episodes and has concluded. In United States, it is currently streaming on Crunchyroll, Crunchyroll Amazon Channel.

Betrothed to My Sister's Ex was produced by LandQ Studios, Futabasha, and NK Animation and made in Japan. It was first aired on July 5, 2025, and carries a TV-14 certification.

First aired: July 5, 2025
Last aired: September 20, 2025
Original language: Japanese
Age rating: TV-14
Status: Ended
Seasons: 1 (12 episodes)
Network: MBS, TBS
Country: Japan
Production: LandQ Studios, Futabasha, NK Animation

#romance#anime#josei#based on light novel

Betrothed to My Sister's Ex cast & crew

The cast features Rena Motomura as Marie (voice), Daiki Hamano as Kyros (voice), Minami Tanaka as Anastasia (voice), Ryohei Kimura as Louisphon (voice), Yoko Hikasa as Mio (voice), and Sayaka Ohara as Ryu Ryu (voice).

Behind the camera, the score was composed by Kujira Yumemi, cinematography is by Kei Machida, and it was produced by Shintaro Yoshitake and Kohei Matsuoka.

Is Betrothed to My Sister's Ex worth watching?

With 1 season and 12 episodes, it's a quick, bingeable run.

If you enjoy animation, comedy, and drama, Betrothed to My Sister's Ex is worth a place on your watchlist.

How and where to watch Betrothed to My Sister's Ex

In United States, you can stream Betrothed to My Sister's Ex on Crunchyroll and Crunchyroll Amazon Channel, or rent and buy it on Amazon Video and Apple TV Store. Click any service above to open it directly.

Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.