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The first-ever movie project for Welcome to Demon School! Iruma-kun is officially underway. The announcement came on September 27, 2026, at Devils’ Party 2, an event held at Nippon Engineering College Arena, and a special trailer dropped alongside it.
That’s one day after the fourth TV anime season aired its finale on September 26. The credits had barely stopped rolling — the arena was still warm — and they fired off the next round. Honestly? That’s good timing.
The source manga is written by Osamu Nishi and has been running in Weekly Shonen Champion since March 2017. Cumulative circulation passed 20 million copies as of March 2026, and the series hits its 10th anniversary in 2027. A movie looks like the biggest possible play heading into that milestone.
What we actually have right now is this: the fact that a movie project exists, a special trailer, and comments from the manga’s creator and its lead voice actor. No release date. No title. And there’s still plenty worth talking about.
When was the Welcome to Demon School! Iruma-kun movie announced? Everything revealed so far
The movie project was announced at Devils’ Party 2, an event held on September 27, 2026, at Nippon Engineering College Arena. It’s the first theatrical film in the series.
A special trailer also screened at the venue. For now, the announcement stops at “the project has started” — release window, title, and story details are all still to come.
| Item | Details |
|---|---|
| Announcement date | September 27, 2026 |
| Where it was announced | Devils’ Party 2 (Nippon Engineering College Arena) |
| What was revealed | First movie project in the series is underway; special trailer screened |
| Source manga | Osamu Nishi, serialized in Weekly Shonen Champion since March 2017 |
| Cumulative circulation | Over 20 million copies (as of March 2026) |
The first TV season premiered in October 2019. That’s seven years and four seasons before anyone greenlit a movie. The modern playbook says you make the film around season two or three, while the hype is peaking — but Iruma-kun built out the TV run first and arrived here on its own schedule. That order feels right to me.
What did creator Osamu Nishi and Iruma’s voice actor Ayumu Murase say?
Both Osamu Nishi and Ayumu Murase, who voices Iruma, issued comments alongside the announcement. Neither one gave anything away. Both of them cranked up the anticipation anyway.
First, Murase:
I think it’s going to be an incredible development that makes you go, “Wait, what happens now?!” I’m looking forward to it myself, so I really hope everyone will come out to see it
Source:Anime! Anime!
“I’m looking forward to it myself” suggests Murase hasn’t seen the full picture yet either. He went on to say, “For now I want to focus on giving my best in the recording booth, so please look forward to it!” — which tells you the dub sessions are still ahead of them.
Nishi’s comment, meanwhile, is the fun one.
I’m looking forward to it, truly. Everyone around me has told me not to say a word, so I can’t say anything (laughs)
Source:Anime! Anime!
“They’ve told me not to say a word.” In other words, there’s enough loaded into this thing that the author spoiling it would wreck it. Nishi also said, “I’m working hard on it regardless, so I hope you’ll wait for it,” which hints that he’s involved in the production. Is it reading too much into that to wonder whether original, anime-only material is in the mix?
As someone who sees new Iruma-kun volumes stacked face-out at Akihabara bookstores every single time I go, that one “I can’t say anything” felt like the biggest piece of information in the whole announcement.
Who made TV season 4? Reading the tea leaves on the movie’s production team
The fourth TV season premiered in April 2026 and wrapped on September 26. Here’s the staff and music lineup that made it. The movie’s team hasn’t been announced yet, but this is the best evidence we have.
| Role | Staff / music |
|---|---|
| Chief director | Makoto Moriwaki |
| Director | Ayaka Tsujihashi |
| Series composition | Kazuyuki Fudeyasu |
| Character design | Yumiko Hara |
| Music | Akimitsu Homma, Yayoi Sekimukai |
| Sound director | Hozumi Goda |
| Animation production | Bandai Namco Pictures |
| Opening theme | Penthouse, “Hi Fu Mi” |
| Ending theme | CANDY TUNE, “Super Yusho Tune!” |
Chief director Makoto Moriwaki has been there since season one, and I’d argue that’s the single biggest reason this series still feels like itself. The appeal of Iruma-kun is that, for a show set in a demon school, it is relentlessly kind. It doesn’t lean on spectacle; it works through the warmth of its cast. Having the person who maintains that balance sitting at the top of the production is a very big deal.
Now the worry. A movie runs shorter than a TV season and gives the staff far more structural freedom. I’ve watched plenty of adaptations cram in so much original material that the film floats free of the source’s tone. I’d like to hope Nishi’s “don’t say a word” isn’t pointing in that direction.
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Welcome to Demon School! Iruma-kun movie: everything we know
Let’s run it back. The first theatrical movie project for Welcome to Demon School! Iruma-kun was announced on September 27, 2026, at the Devils’ Party 2 event at Nippon Engineering College Arena. A special trailer has screened, but the release window, title, and story are all still unannounced.
The manga, by Osamu Nishi, has run in Weekly Shonen Champion since March 2017 and has topped 20 million copies in circulation as of March 2026. It reaches its 10th serialization anniversary in 2027. On the anime side, season one premiered in October 2019 and season four ran from April 2026 to its September 26 finale.
Ayumu Murase promises “an incredible development that makes you go, ‘Wait, what happens now?!'” Osamu Nishi says he’s been told not to say a word. Those two comments are the most eloquent information we’ve got right now. Stay tuned.
Stacking up four TV seasons before moving to a movie is an unfashionably patient way to do this. Iruma-kun has never been a show that wins by swinging hard; it’s built on the slow accumulation of relationships shifting inside a demon school. Going into a film with seven years of that groundwork is an enviable position to be in. If anything worries me, it’s that a theatrical runtime invites a Big Event, and a Big Event could blow away the exact temperature that makes this series work.
Once the author laughs and says he isn’t allowed to tell you anything, not getting excited is the harder option.
Snicker Kitamura
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