Cocomuyo

TO Books has officially announced that Mizuki Nagano’s dark fantasy light novel series The Person I Loved Asked Me to Die in My Sister’s Stead (Koishita Hito wa, Imōto no Kawari ni Shindekure to Itta.) is receiving an anime adaptation. While the announcement confirmed the adaptation on Wednesday, details regarding the anime’s format, studio, or release window have yet to be revealed.

The story centers on Lady Wisteria, whose devotion to Lord Bright, the man she loves, defines her life. When her younger sister Rosalie is chosen to become the guardian of the mysterious Predawn Realm—a role that guarantees she will never return—Bright makes a devastating request: he asks Wisteria to die in Rosalie’s place. Armed with the holy sword Sartis and gifted with magic resistant to the realm’s deadly miasma, Wisteria enters the Predawn Realm herself. More than twenty years later, her quiet exile is shattered when a man who looks exactly like Lord Bright appears, seeking the sword and challenging her past.

Nagano originally launched the novel series on Shōsetsuka ni Narō in November 2020. The web version concluded its third arc in September 2022 before being removed from the platform. TO Books began publishing the print edition in September 2021, featuring illustrations by Saori Toyota, and is set to release the eighth volume on January 10.

A manga adaptation by Maki Yamori began serialization on TO Books’ Corona EX website in June 2022. The sixth collected volume of the manga will also ship on January 10, while Tokyopop publishes the series in English, with the fourth volume released in August 2025.

The franchise has steadily grown in popularity, with the manga ranking multiple times in Takarajimasha’s Kono Light Novel ga Sugoi! guidebook, appearing in the 2023, 2024, 2025, and 2026 editions.