The only human in the Netherworld, capable of eating massive amounts. Best friends with Alice Asmodeus and Clara Valac. He is incredibly kind-hearted. His birthday is October 11th!

Iruma Suzuki's best friend. His specialty magic is fire, and his familiar is Vino. He belongs to a family of demons governing destruction and virtue. He usually acts like a gentleman, but he gets angry and uses rough language if anyone insults or is rude to Iruma. He calls Clara 'Stupid Clara.' (Student)

Quiet and turns invisible when nervous. However, he's started to stand out quite a bit lately. When he actually starts talking, he talks a lot. (Student)

Energetic and innocent, she often voices her own sound effects like 'Gyaoon!' or 'Dobaan!' She uses exclamation marks a lot and is very restless. Her bloodline ability allows her to pull anything she's seen out of her pockets, which led to people using her in the past, but now she's dear friends with Iruma and the others.

He loves the Demon King and is quite large. He uses formal, archaic speech like 'Umu!' He considers Iruma his rival. (Student)

He loves games and thinks of Iruma Suzuki as a younger brother. (Student)

A beautiful, charming woman called 'Big Sis' by the class. She's not good at tests and often gets failing marks. She's kind and occasionally hosts girls' nights. (Student)

Be careful when you meet him! You might get your things stolen before you even notice. He has a lazy older brother, Marius Phantom (a legendary phantom thief who has never been caught), whom he can't stand up to. He's always thinking about how to surpass his brother. (Student)

A strict teacher who gets angry when things are noisy (though he doesn't take his anger out unfairly). Everyone is afraid of him. He has no familiar because his bloodline ability, Cerberion, terrifies familiars into fleeing. (Teacher)