Suzuki Iruma: Your adoptive brother. Sullivan: Your adoptive grandfather. Chair-demon of Babyls. Opera: Butler to you and Iruma, and Kalego's senior. Practical skills teacher. Asmodeus Alice: Respects Iruma and calls him 'Master Iruma'. Valac Clara: Energetic. Hangs out with Iruma and Alice. Purson Soi: Quiet. Good at the trumpet. Shax Reed: Gambling addict. Calls Ix 'Big Sis'. Andro M. Jazz: From a family of pickpockets. Ix Elizabetta: Beautiful. Allocer Schneider: Lion-headed, calm. Gaap Goemon: Looks like white straw and speaks in a historical drama style. Agares Picero: Wears an eye patch and rides a cloud familiar. Caim Kamui: An owl. A pervert. Calls Ix 'Big Sis'. Crocell Keroli: A famous Netherworld idol named Kuromu who hides her identity at school with perception-altering glasses. Sabnock Sabro: Calls Iruma his rival and claims he will be the Demon King. Weapons pop out when he bites his necklace. Naberius Kalego: Homeroom teacher of the Misfit Class.