The anime is an official "what if?" spinoff about Iruma becoming the boss of the Babyl Mafia Clan.
Initially announced back in February, the spinoff anime to “Welcome to Demon School! Iruma-kun” has confirmed a premiere date of 4 January, 2027.
The spinoff, titled “IruMafia Edition”, adapts the spinoff manga series of the same title, and will follow a “what if?” storyline where Iruma ends up becoming the boss of the Babyl Mafia Clan.
What do we know about IruMafia Edition so far?
Keiichiro Kawaguchi is directing the series at Tatsunoko Productions. The rest of the staff are:
- Character design: Kenji Fujisaki
- Color design: Chiho Nakamura
- Music: Yayoi Sekimukai
- Series composition: Kazuyuki Fudeyasu
- Art director: Wang Baoqing
- Director of photography: Fumi Nanba
- Music director: Hozumi Gōda
While the main voice actors will reprise their roles from the original series:
- Ayumu Murase as Iruma Suzuki/Boss Iruma
- Mitsuki Saiga as Opera
- Daisuke Ono as Kalego Naberius
- Ryohei Kimura as Alice Asmodeus
- Ayaka Asai as Clara Valac
- Saori Hayami as Ameri Azazel
- Hozumi Gōda as Narrator
The IruMafia Edition manga is a spin-off based on Osamu Nishi’s popular manga Welcome to Demon School! Iruma-kun. The spin-off, penned and illustrated by hiromono, began publication on 12 September 2023, in the Bessatsu Shōnen Champion magazine. Later it was transferred to the Weekly Shōnen Champion magazine on 11 December, 2025. Kodansha publishes the IruMafia Edition manga in English and describes the story as:
Iruma-kun, the mob boss?!
In this brand-new spinoff of the runaway hit series, Iruma is a dirt-poor but kind young boy who grows up in a ruthless city slum. One day, Iruma gives a severely 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, leader of the Babel Mafia! Soon after, Don Sullivan comes back, whisks Iruma away, and begs the boy to become his grandson. And just like that, the curtains rise on Iruma’s chaotic new life as the next in line to a gigantic gang of—dare we say—demonic mafiosos!
What is “Welcome to Demon School! Iruma-kun” about?
The original Welcome to Demon School! Iruma-kun manga by Osamu Nishi began in March 2017 in the Weekly Shōnen Champion magazine. It has 46 tankōbon volumes so far. The anime adaptation by Bandai Namco Pictures and NHK Educational TV began in October 2019. The second and third seasons aired in April 2021 and October 2022. Season 4 aired in April 2026. Kodansha publishes the original manga in English and describes the plot as:
Hopeless pushover Iruma Suzuki has found himself in a devil of a predicament… His trashy parents have sold off his soul, and he now has to live and attend school in the Netherworld. But with his unique survival skills and doting demon grandfather’s support, Iruma will surely make it through this hellish experience. He’ll just need to subjugate rival classmates, summon familiars, and more, all while never revealing that he’s human… Easy as aleph, bet, gimel, right?