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Welcome to Demon School! Iruma-kun: IruMafia Edition 4

Paperback
| 13 oz | 24 per carton
On sale May 19, 2026 | 208 Pages | 9781647295608
Rated T+
FOC Mar 23, 2026 | Catalog February 2026

Iruma’s next challenge: go undercover at a black market auction?!

Shocking news of a traitor scurrying around within the Babel mafia syndicate puts Kalego on the hunt for the rat. Meanwhile, Iruma finds out where Clara’s little brother Urala is being kept, and decides to go all in on his most dangerous operation yet: an undercover mission at a black market auction!!
Osamu Nishi began her career as a manga artists in 2011 and had her first serialized story, Hotel Helheim, published in Jump Square magazine in 2014. Her second series, Welcome to Demon School! Iruma-kun, has been running in Shonen Champion magazine since 2017 and gone on to be a hit anime series. The manga version of Welcome to Demon School! Iruma-kun will be the first time that any of her series have been published in English.
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About

Iruma’s next challenge: go undercover at a black market auction?!

Shocking news of a traitor scurrying around within the Babel mafia syndicate puts Kalego on the hunt for the rat. Meanwhile, Iruma finds out where Clara’s little brother Urala is being kept, and decides to go all in on his most dangerous operation yet: an undercover mission at a black market auction!!

Creators

Osamu Nishi began her career as a manga artists in 2011 and had her first serialized story, Hotel Helheim, published in Jump Square magazine in 2014. Her second series, Welcome to Demon School! Iruma-kun, has been running in Shonen Champion magazine since 2017 and gone on to be a hit anime series. The manga version of Welcome to Demon School! Iruma-kun will be the first time that any of her series have been published in English.
Penguin Random House Comics Retail