A television anime adaptation of the romance novel Betrothed to my Sister's Ex has been announced for release in 2025. More details about the adaptation will be revealed by Futabasha at a later date.
The series (also known in Japanese as Zutaboro Reijo wa Ane no Moto Konyakusha ni Dekiai Sareru) began as web novels written by Tobirano on the Shosetsuka ni Naro website in October 2019. Futabasha later published the light novels with new illustrations by Mai Murasaki in April 2020, with seven physical volumes released as of May 2024.
© Tobirano, Mai Murasaki, Futabasha
A manga adaptation by Chikage Nakagura began serialization on Futabasha's Gaugau Monster website on July 24, 2020, with seven tankobon volumes released as of April 2024.
Comico's Pocket Comics website is releasing the manga in English digitally, with the main synopsis described as follows:
With her flowing red hair and shabby clothes, Marie, the daughter of a baron, has been treated as a servant all her life. Count Granado, the richest man in the country, who is said to be a difficult person, falls in love with her at first sight. However, due to a misunderstanding, Count Granado proposes to his sister Anastasia, who looks like a princess, instead of the ragged Marie. A very famous work from “Becoming a Novelist”! Marie’s Cinderella story begins with a hero’s misunderstanding!
Source: Tobirano Official TwitterFutabasha Official Website
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