Mairimashita! Iruma-Kun is a Manga/Manhwa/Manhua in (English/Raw) language, Comedy series, english chapters have been translated and you can read them here. You are reading Mairimashita! Iruma-Kun chapters on https://mangabtt.com, fastest updating comic site. The Summary is
Mairimashita! Iruma-kun is the story of Suzuki Iruma, who has been sold to the demon by his irresponsible parents in exchange for money. Surprisingly, next thing he knows, he is living with the demon and has been transferred into a school from Demon World. We invite you to follow Iruma-kun's extraordinary school life.