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Kotoba Inoya's Sonata wa Ittai Dare Nanda Manga Reaches Climax
posted on by Rafael Antonio Pineda

The magazine describes the manga as a "dramatic fantasy" story, in which a hero forgets everything after defeating the dark lord, meeting someone who claims to be part of the hero's family.
Inoya launched the manga in Shōnen Champion on May 15. Akita Shoten published the manga's second compiled book volume on Monday, and will publish the third volume on February 6.
Inoya launched the Smile Down the Runway (Runway de Waratte) manga as his debut serialization in Kodansha's Weekly Shōnen Magazine in May 2017. The manga ended with its 22nd volume in August 2021. The manga inspired a 12-episode television anime that premiered in January 2020. Funimation streamed the series as it aired.
Inoya and Yuu Okino launched the Gakuen Idolmaster Gold Rush manga, based on the Gakuen Idolm@ster (Academy Idolm@ster) game app, in Shōnen Champion in October 2024. Inoya is credited for writing and composition, and Okino draws the art.
Source: Shōnen Champion issue 1 (2026)