Welcome to Demon School! Iruma-kun Books in Order
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The Welcome to Demon School! Iruma-kun series by Osamu Nishi includes 21 books published between 2023–2026.
✓ All 21 books verified against the publisher's official series list.
Publication order
In the order the books were originally released.
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Buy on AmazonWelcome to Demon School! Iruma-kun 1
2023 · Osamu Nishi
Welcome to Demon School Hopeless pushover Iruma Suzuki has found himself in a devil of a predicament… His trashy parents have sold off his soul, and…
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Buy on AmazonWelcome to Demon School! Iruma-kun 2
2023 · Osamu Nishi
Comical Rendezvous Despite his best efforts to avoid attention, Iruma’s dumb luck and good nature have made him the talk of Babyls. But his unwanted…
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Buy on AmazonWelcome to Demon School! Iruma-kun 3
2023 · Osamu Nishi
A New Challenge His first-ever personal goal reached, Iruma wonders what he should set his sights on next. Fortunately, there are a whole host of…
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Buy on AmazonWelcome to Demon School! Iruma-kun 4
2023 · Osamu Nishi
Let the Party Begin The much-awaited Battler Party is finally here, and Iruma and the demons of the Magical Apparatus Research Battler are ready to…
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Buy on AmazonWelcome to Demon School! Iruma-kun 5
2023 · Osamu Nishi
Fickle Flash of Fame After stealing the show at the Battler Party with his and his friends’ fireworks, Iruma realizes to his dismay that he’s…
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Buy on AmazonWelcome to Demon School! Iruma-kun 6
2024 · Osamu Nishi
Diabolical Designs Fresh off the stage where he made his dem-dol debut, Iruma discovers an astounding new aspect to his magical ring and is caught in…
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Buy on AmazonWelcome to Demon School! Iruma-kun 7
2024 · Osamu Nishi
Introducing Irumean After Iruma makes an offhand comment about wanting to understand demons better, his trusty magical ring casts a sneaky spell to…
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Buy on AmazonWelcome to Demon School! Iruma-kun 8
2024 · Osamu Nishi
A Tricky Test The end of terminus break from classes at Babyls is right around the corner! Now, there’s only one thing standing between Iruma and…
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Buy on AmazonWelcome to Demon School! Iruma-kun 9
2024 · Osamu Nishi
Party at Walter Park After safely passing their exams, Iruma and his friends start their end of terminus break from classes with a trip to Walter…
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Buy on AmazonWelcome to Demon School! Iruma-kun 10
2024 · Osamu Nishi
Babyls Bravehearts The Six Fingers, a malicious band of demons, have summoned three magical beasts to destroy Walter Park!! But far from backing…
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Buy on AmazonWelcome to Demon School! Iruma-kun 11
2024 · Osamu Nishi
Rollicking Recreation Sleepovers, mixers, and dates, oh my...! After the tumult at Walter Park, Iruma settles in to enjoy a heart-pounding end of…
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Buy on AmazonWelcome to Demon School! Iruma-kun 12
2025 · Osamu Nishi
Off to the Harvest After completing grueling training regimes under their elite instructors, the Misfit Class demons are revamped and ready to take…
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Buy on AmazonWelcome to Demon School! Iruma-kun 13
2025 · Osamu Nishi
Tastiest Festival Ever It’s day one of the Harvest Festival, the survival game-slash-rank promotion exam that pits first-years against each other!…
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Buy on AmazonWelcome to Demon School! Iruma-kun 14
2025 · Osamu Nishi
A Long-shot Bet for the Upset Day two of the Harvest Festival has dawned, but Iruma and Lied still have zero points. Hoping to turn their luck…
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Buy on AmazonWelcome to Demon School! Iruma-kun 15
2025 · Osamu Nishi
Countdown to the Crown All that’s left of the Harvest Festival is a mad dash to the finish line! With time running out, the first-years fight harder…
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Buy on AmazonWelcome to Demon School! Iruma-kun 16
2025 · Osamu Nishi
Heart-pounding Harvest Festival Finale! After Asmodeus sacrifices his chance at the champion’s crown to save Iruma and Clara from danger, it’s up to…
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Buy on AmazonWelcome to Demon School! Iruma-kun 17
2025 · Osamu Nishi
Let the Music Play!! With the Harvest Festival behind them, Iruma and the Misfit Class must now begin rehearsing for their next challenge: the Music…
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Buy on AmazonWelcome to Demon School! Iruma-kun 18
2026 · Osamu Nishi
Dance, Demons, Dance! After Iruma’s heartfelt pitch, Purson gives in and agrees to take to the stage at the Music Festival with the rest of the…
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Buy on AmazonWelcome to Demon School! Iruma-kun 19
2026 · Osamu Nishi
Take to the stage!! The curtains rise on the Music Festival―but will the Misfit Class manage to steal the show?! And what path will the final misfit…
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Buy on AmazonWelcome to Demon School! Iruma-kun 20
2026 · Osamu Nishi
The Music Festival Grand Finale!! Iruma and the Misfit Class leave it all on the stage―but will their passionate performance be enough to move the…
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Buy on AmazonWelcome to Demon School! Iruma-kun 21
2026 · Osamu Nishi
The Big 15!! Iruma Suzuki, once a poor young boy with nothing to his name, is now set to take a big step towards adulthood in the netherworld!! And…
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✓ = numbering verified against the publisher's official series list.
📅 = publisher-announced release dates; subject to change. All upcoming releases →
Frequently asked questions
What order should I read the Welcome to Demon School! Iruma-kun books in?
Read them in publication order, starting with “Welcome to Demon School! Iruma-kun 1”. Start with “Welcome to Demon School! Iruma-kun 1.”
How many books are in the Welcome to Demon School! Iruma-kun series?
We list 21 books by Osamu Nishi , published between 2023–2026.
When is the next Welcome to Demon School! Iruma-kun book released?
The next book is “Welcome to Demon School! Iruma-kun 22”, book 22 in the series, expected Oct 6, 2026. That is the publisher's announced date and can change; this page updates when it does.
Where can I buy the Welcome to Demon School! Iruma-kun books?
Each title above links to Amazon. See our affiliate disclosure.
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Reading order compiled from author/publisher guidance and verified bibliographic data. Spotted a wrong order, a missing book, or any other mistake? and we'll correct it.