is a Japanese manga series written and illustrated by hiroja. It was initially serialized in Akita Shoten's shōnen manga magazine Bessatsu Shōnen Magazine between September 2023 and October 2025, before being transferred to its Weekly Shōnen Champion magazine in December 2025. The series is an alternate universe mafia spin-off of Osamu Nishi's Welcome to Demon School! Iruma-kun manga series. An anime television series adaptation is set to premiere in January 2027.
Synopsis Iruma is a poor boy living in the slums of a city. One day, he spots an injured man by his house, and helps him recover. He later finds out that the man he helped out was Don Sullivan, the leader of the Babyl Mafia. Sullivan returns to Iruma, and asks him to become his grandson and join the mafia.
Media Manga
Written and illustrated by hiroja, Welcome to Demon School! Iruma-kun: IruMafia Edition was initially serialized in Akita Shoten's shōnen manga magazine Bessatsu Shōnen Champion from September 12, 2023 to October 10, 2025. The series resumed serialization in Weekly Shōnen Champion on December 11, 2025, with its chapters published on a bi-weekly basis. The series' chapters have been compiled into nine tankōbon volumes as of October 2026.
During their panel at New York Comic Con 2024, Kodansha USA announced that they had licensed the series for English publication in Q4 2025.
Anime An anime television series adaptation was announced on February 4, 2026. The series is set to premiere on NHK General TV in January 2027.
Reception The series was ranked second in the print category at the tenth Next Manga Awards in 2024.
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