Alternative Name: Mairimashita! Iruma-kun Mafia AU;Welcome to Demon School! Iruma-kun (Mafia Alternate Universe);Welcome to Demon School! Iruma-kun: If Episode of Mafia;魔入りました！入間くん if Episode of 魔フィア

Genre(s): Action Comedy Slice Of Life

Demographic: Shounen

Summary:
The beloved characters of Mairimashita! Iruma-kun star in this Mafia-based spinoff! Young Iruma saves an injured mob boss from death... and then beco... MORE The beloved characters of Mairimashita! Iruma-kun star in this Mafia-based spinoff! Young Iruma saves an injured mob boss from death... and then becomes his grandson!? HIDE