The official website for the Mairimashita! Iruma-kun: If Episode of Mafia anime released the show’s full production staff and a key visual on Tuesday. It also confirmed the premiere: January 4, 2027 at 11:00 p.m. on NHK-G.
That slot puts the spin-off in late-night territory on Japan’s public broadcaster, which is where a lot of NHK’s anime output sits outside its family programming block.
Staff
- Director: Keiichirou Kawaguchi (Higurashi no Naku Koro ni Gou)
- Series composition: Kazuyuki Fudeyasu (Yasei no Last Boss ga Arawareta!)
- Character design: Kenji Fujisaki (Blood Lad)
- Art director: Baochong Wang (Handa-kun)
- Color design: Chiho Nakamura (Youjo Senki)
- Director of photography: Fumito Nanba (Summer Pockets)
- Music: Yayoi Sekimukai
- Sound director: Hozumi Gouda
- Studio: Tatsunoko Production
- Production: NHK Enterprises and NHK
Tatsunoko taking the animation is the headline detail. The studio has a long history in action and comedy, and it is a different house from the one behind the main Iruma-kun anime, so the spin-off will look distinct even though it shares a world.
Kawaguchi’s Higurashi work involved keeping a large cast legible across a complicated timeline. That skill transfers here, since the mafia version of the series drops the same characters into a completely different genre.
What the spin-off is
If Episode of Mafia is a what-if story from the Welcome to Demon School! Iruma-kun franchise. It takes the cast of the main series and recasts them as mobsters, with Iruma at the center of a criminal organization instead of a demon school.
The manga is by hiroja and began serializing in Akita Shoten’s Bessatsu Shounen Champion in September 2023. The ninth volume shipped on October 7. Kodansha USA announced the English license at its New York Comic Con 2024 panel; the fifth volume came out on August 25 and the sixth is due November 17.
The original Iruma-kun series comes from Osamu Nishi’s manga, which has been running in Weekly Shonen Champion since 2017. The anime adaptation began in October 2019, and the third season aired in 2022. A first anime film project was also announced.
Why a spin-off makes sense here
Iruma-kun is a franchise with a deep bench. The main story has dozens of characters, and a what-if premise lets the anime use them without waiting for the manga to reach a particular arc.
It also keeps the brand active on NHK’s winter schedule while the mainline series moves at its own pace. That is a practical argument for a spin-off, and a well-made one. The risk is that mafia pastiche runs thin over a full cour, and the January slot does not leave much room for a slow start.
There is one more thing worth noting. Spin-offs from school comedies usually float on jokes alone. This one has a director whose strongest work came from dramatic tension, so the odds of it being more than a gag are better than usual.
If you are new to the series, our guide to watching Iruma-kun in order covers where each season fits.
No streaming platform outside Japan has been confirmed.
Source: MyAnimeList News
Featured image: the key visual for Mairimashita! Iruma-kun: If Episode of Mafia, via MyAnimeList News.
