Betrothed to My Sister's Ex (ずたぼろ令嬢は姉の元婚約者に溺愛される, Zutaboro Reijō wa Ane no Moto Konyakusha ni Dekiai Sareru, lit. "Loved by Her Sister's Former Fiancé") is a Japanese light novel series written by Tobirano and illustrated by Mai Murasaki. It began serialization online in October 2019 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Futabasha, who have published seven volumes since April 2020 under their M Novels f imprint. A manga adaptation with art by Chikage Nakakura has been serialized online via Futabasha's Gaugau Monster website since July 2020 and has been collected in eight tankōbon volumes. An anime television series adaptation produced by LandQ Studios is set to premiere in July 2025.
Written by Tobirano, Betrothed to My Sister's Ex began serialization on the user-generated novel publishing website Shōsetsuka ni Narō on October 23, 2019.[3] It was later acquired by Futabasha who began publishing the series with illustrations by Mai Murasaki under their M Novels f light novel imprint on April 15, 2020. Seven volumes (including five volumes published digital-only) have been released as of May 2024.[4]
A manga adaptation illustrated by Chikage Nakakura began serialization on Futabasha's Gaugau Monster website on July 24, 2020.[12] The manga's chapters have been collected into eight tankōbon volumes as of December 2024.[13] The manga adaptation is published digitally in English on Comico's Pocket Comics website.[14]
An anime television series adaptation was announced on July 29, 2024.[14] The series is produced by LandQ Studios and directed by Takayuki Kitagawa, with series composition handled by Kenta Ihara, characters designed by Akiko Satō, and music composed by Kujira Yumemi. It is set to premiere in July 2025.[2]