Welcome to Demon School! Iruma-kun (魔入りました！入間くん Mairimashita! Iruma-kun, “Enrolled Demon Iruma!”) is a Japanese manga series written and illustred by Osamu Nishi. It has been published in Akita Shoten’s manga magazine Weekly Shōnen Champion. The First chapter was published on March 2nd 2017 and has been collected in thirteen volumes. An anime series adaptation by Bandai Namco Pictures has premiered on October 5, 2019.

The story centers around the 14-yr old boy Iruma Suzuki (鈴木入間 Suzuki Iruma) who was, due to his bad luck, sold by his irresponsible parents to a demon for their own selfish interests. Surprisingly, next thing he knows, he is living with a demon and has been transferred into a school from the Demon World where his owner is the chair-demon. There he quickly becomes friends with the demons Asmodeus Alice (アスモデウス・アリス), Valac Clara (ウァラク・クララ), and Azazel Ameri (アザゼル・アメリ).

In order to survive, Iruma must hide his status as a human, deal with the student who challenges him to a duels, and so many more scary beings!