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Welcome to Demon School! Iruma-kun: IruMafia Edition Manga Moves to Weekly Shonen Champion on December 11
posted on by Joanna Cayanan
The November issue of Akita Shoten's Bessatsu Shōnen Champion magazine announced on Friday that hiroja's Welcome to Demon School! Iruma-kun: IruMafia Edition (Mairimashita! Iruma-kun if Episode of Mafia), the spinoff manga of Osamu Nishi's Welcome to Demon School! Iruma-kun series, will move its serialization to Akita Shoten's Weekly Shōnen Champion magazine, starting in its combined second and third 2026 issue that will ship on December 11.
Kodansha USA Publishing licensed the manga and released the first volume in English on August 19. The company describes the story:
Get ready to meet the lovable cast of Welcome to Demon School! Iruma-kun as you've never seen them before!
In this brand-new spinoff of the runaway hit series, Iruma is a dirt-poor but unfailingly cheerful young boy who grows up in a ruthless city slum. One day, Iruma gives an injured old man his last loaf of bread and nurses the stranger back to health—only to find out that the elder gent is none other than Don Sullivan, head of the Babyl Mafia! Soon after, Don Sullivan comes back, whisks Iruma away, and begs the boy to become his grandson. And just like that, Iruma begins his new life as the next in line to lead a gigantic gang of—dare we say—demonic mafiosos!
The spinoff manga launched in Bessatsu Shōnen Champion in September 2023. Akita Shoten published the manga's sixth compiled book volume on October 8.
Nishi's Kalego spinoff manga Mairimashita! Iruma-kun: Kalego Gaiden (Kalego Side Story) ended in January 2024. The series launched in Weekly Shōnen Champion in December 2023.
Nishi had written a previous two-chapter Kalego Gaiden spinoff manga in 2020.
Atsu Tsudanuma's spinoff series Makai no Shuyaku wa Wareware da! (The Protagonist of the Demon World is Us) spinoff series was canceled and its final chapter was published on March 6. The series is connected to the main Welcome to Demon School! Iruma-kun series, and is also a collaborative series with the "◯◯ no Shuyaku wa Wareware da" YouTuber group. The manga launched in Weekly Shōnen Champion in January 2020. Akita Shoten published the manga's 22nd and final volume on June 6.
Nishi launched the Welcome to Demon School! Iruma-kun manga in Weekly Shōnen Champion in March 2017. The manga's first anime adaptation premiered in October 2019, and the second season premiered in April 2021, followed by the third season which debuted in October 2022. The fourth anime season will debut in April 2026.
Sources: Bessatsu Shōnen Champion November issue, Comic Natalie
