The official website and accounts for the upcoming Betrothed to My Sister's Ex anime today unveiled a brand-new trailer and key visual, additional cast and a July 4 at 25:23 JST (effectively July 5 at 1:23) broadcast debut in Japan. "Gesshoku" by krage ( Solo Leveling ED), the series' opening song, is also previewed in the trailer below. Myuk performs "Marie" for ending song. Betrothed to My Sister's Ex Trailer Betrothed to My Sister's Ex Key Visual The Betrothed to My Sister's Ex anime's currently confirmed cast is as follows: Marie voiced by Rena Motomura Cyrus voiced by Daiki Hamano Anastasia voiced by Minami Tanaka Ruifon voiced by Ryohei Kimura Mio voiced by Yoko Hikasa Liu-Liu voiced by Sayaka Ohara RELATED: Betrothed to My Sister's Ex Anime Reveals Key Visual and Trailer, July 2025 Release Takayuki Kitagawa directs Betrothed to My Sister's Ex at LandQ studios, with assistant direction by Masakazu Sunagawa, series composition by Kenta Ihara, character designs by Akiko Sato and music by Kujira Yumemi. Tobirano and Mai Murasaki created the original light novels. Pocket Comics publishes an official English version of Chikage Nakagura's manga adaptation and describes the story: With unmaintained red hair and shabby clothes, Marie, the baron's daughter, has been treated like a servant all her life. Count Granado, the country's richest man, who is said to be a difficult misogynist, falls in love with her at first sight. However, due to a misunderstanding, Count Granado proposes to her sister Anastasia, who looks like a princess, instead of the ragged Marie. A very popular work from "Become a Novelist"! Marie's Cinderella story that began with a hero's misunderstanding! Source: Official Website
