Welcome to Demon School! Iruma-kun (魔入りました！入間くん, Mairimashita! Iruma-kun) is a Japanese manga series by Osamu Nishi. It has been serialized in Akita Shoten's shōnen manga magazine Weekly Shōnen Champion since March 2017. An anime series adaptation by Bandai Namco Pictures premiered on October 5, 2019.
Suzuki Iruma is an ordinary boy who couldn't say no to anyone. Working in place for his irresponsible parents was one thing, but his parents selling his soul to the demon for money was another. Surprisingly, Iruma's new life in the netherworld is one hell of ups and downs when he transfers into a school for demons, and is the adopted grandchild of its principal. We invite you to follow Iruma-kun's extraordinary school life.