This Friday (23), the official website for the anime Betrothed to My Sister's Ex ( Zutaboro Reijō wa Ane no Moto Konyakusha ni Dekiai Sareru ) had its official release date revealed. In addition, fans can see a new visual and trailer for the anime.
The release of Betrothed to My Sister's Ex ( Zutaboro Reijō wa Ane no Moto Konyakusha ni Dekiai Sareru ) will take place on July 4, 2025, with animation by Studio Landock.

Production Team
- Original work: Tobirano and Chikage Nakakura ( Monster Comics f , Futabasha)
- Original character design: Mai Murasaki
- Director: Takayuki Kitagawa
- Assistant director: Masakazu Sunagawa
- Screenplay and series composition: Kenta Ihara
- Character design: Akiko Sato
- Music: Yumemi Kujira
- Studio: Landock Studio
Synopsis:
Marie, the youngest daughter of an impoverished baron, lives treated like a servant by her parents and wears simple, worn-out clothes. Despite this, she maintains a kind heart and is devoted to her family. At a birthday party organized for her, the true star is her older sister, Anastasia, who is treated like a princess. Sad, Marie leaves the party and happens to meet the wealthy Count Kyros Granado. The Count falls in love with Marie at first sight, but due to a misunderstanding, he ends up proposing to Anastasia. The situation progresses rapidly, but tragedy strikes the family when Anastasia suffers a fatal accident. As a result, Marie is chosen to marry in her sister's place. Thus begins the journey of Marie, the neglected young woman, in her Cinderella story marked by twists and turns and misunderstandings!
Finally, Zutaboro Reijō wa Ane no Moto is a Japanese light novel series written by Tobirano and illustrated by Mai Murasaki . The work began its online serialization in October 2019 on the user-created novel publishing website, Shōsetsuka ni Narō .
Source: Official Website
