The TV anime Welcome to Demon School! Iruma-kun: IruMafia Edition (Mairimashita! Iruma-kun if Episode of Mafia) will premiere on January 4, 2027. The mafia-themed spinoff will run for 12 episodes.
IruMafia Edition synopsis: Iruma becomes a mafia boss
The story centers on Iruma, a boy living in a slum full of violence and crime. Although he has very little, he stays kind and always shares his food with others.
One day, a badly injured old man appears before Iruma. He turns out to be Don Sullivan, head of the Babyl Mafia. After Iruma helps him, Iruma's life changes completely when Sullivan raises him as his grandson.
To protect his new family and become a worthy boss, Iruma begins a turbulent life in the mafia. According to the official website, the anime is an action comedy.
Production Staff
All of the announced voice actors are from the main Iruma-kun anime, returning to play the same characters in this spinoff.
The following cast list has been announced:
- Ayumu Murase as Iruma
- Mitsuki Saiga as Opera
- Daisuke Ono as Naberius Kalego
- Ryohei Kimura as Asmodeus Alice
- Ayaka Asai as Valac Clara
- Saori Hayami as Ameri
Character visuals for all six characters are also up on the official website. Behind the scenes, the anime is being made by the following staff:
- Director: Keiichiro Kawaguchi
- Series Composition: Kazuyuki Fudeyasu
- Character Design: Kenji Fujisaki
- Art Director: Bao Chong Wang
- Music: Yayoi Sekimukai
- Animation Production: Tatsunoko Production
The story is based on the spinoff manga by hiro者 (Manga), with Osamu Nishi credited for the Original Concept.
About Iruma-kun
Welcome to Demon School! Iruma-kun began as a manga by Osamu Nishi that started serialization in Weekly Shonen Champion in March 2017. As of September 8, 2026, the manga has 50 volumes. It follows Suzuki Iruma, a 14-year-old human boy who is suddenly taken to the demon world and must survive at a school for demons.
The anime adaptation first aired in October 2019, followed by season 2 in April 2021 and season 3 in October 2022. Season 4 began airing on April 4, 2026. The franchise is also preparing its first theatrical anime film.
The IruMafia Edition spinoff manga began in Bessatsu Shonen Champion magazine in September 2023 and moved to Weekly Shonen Champion in December 2025. Its ninth volume was released on October 7, 2026. The English edition is licensed by Kodansha USA Publishing, which released the fifth volume on August 25, 2026.
According to the official website, the manga placed second in the comics category of Tsugi ni Kuru Manga Taisho 2024 and has sold more than 1.66 million copies as of October 2026.
