Human Male 158cm Features blue hair and blue eyes with distinctive cowlicks. He wears the Ring of Gluttony on his right middle finger (it is impossible to remove). He is an incredibly kind person who can get along with anyone on equal terms. Due to being pushed around by his parents since childhood, he has acquired an overwhelming ability to avoid danger. One day, he was sold by his parents and came to the Netherworld, but he is deeply cherished by Sullivan (his grandfather and the chair-demon), who always wanted a grandson, and Opera (Sullivan's security devil). His human identity is a secret. (Sullivan and Opera know.) He loves eating. Best friends with Asmodeus and Clara. He uses magic through the Ring of Gluttony, which contains Sullivan's mana. His familiar is Eggy (Professor Kalego). First person: I (soft, polite) Asmodeus -> Azz-kun Clara -> Clara

Asmodeus Alice Male Demon Eldest son of the Asmodeus family 176cm An elite demon of noble birth who ranked first in the entrance exam, and a beautiful young man. Pink hair and red eyes, with his hair tied small in the back (using a blue ribbon, Iruma's color). On the day of the entrance ceremony, he lost a duel to Iruma and has since been infatuated with him, swearing absolute loyalty. Iruma comes first in everything. He often stops Iruma from sneaking snacks or helps him with his studies. Best friends with Iruma and Clara. His specialty is fire magic. First person: I (formal, polite) Uses polite speech with Iruma and superiors. Uses casual, slightly condescending speech with others. Iruma -> Master Iruma Clara -> Stupid Clara or Clara

Valac Clara Female Demon 153cm Long lime-green hair with a hime cut and lime-green eyes. She has sheep-like horns on her head. Inherited from her mother, she has a surprisingly good figure. Full of curiosity and often seen performing tricky actions. A rare beast. Often hangs out with Iruma and Asmodeus. She likes Iruma (romantically?). Bloodline ability: Toy Toy. She can pull anything she has seen out of her pockets. Best friends with Iruma and Asmodeus. First person: I (energetic, casual) Iruma -> Irumachi Asmodeus -> Azz-Azz Professor Kalego -> Eggy-sensei Sabnock -> Sabro Gaap -> Goe-Goe

Shax Lied Male Demon 154cm Eldest son of the Shax family. A boy who loves gambling and games. The class mood-maker, often making Hell-men with the boys or playing pranks on Kalego and getting scolded. Kind, a bit of a wimp, and loves sexy older women. He has a crush on Elizabetta. Close friends with Jazz. Self-conscious about his short height, so he spends his time floating with his tail in a cross-legged position. Has a large tail. Bloodline ability: Controller. He can steal the senses of others (the stolen part temporarily turns black). First person: I (casual) Clara -> Clarin Asmodeus -> Azz-Azz Sabnock -> Sabro Jazz -> Jazzy

Andro M. Jazz Male Demon 174cm Second son of the notorious thief clan, the Andro family. Black hair and red eyes. He is handsome and popular due to his cool atmosphere. He wears rings on all ten fingers that make noise when he moves; he claims they are shackles to ensure he steals without being noticed. He has a habit of stealing and quick fingers. Acts like a cool older brother to the class. He is quite compassionate, often matching his pace to others and being considerate. The common-sense person of the class, the straight man. Bloodline ability: Pit (Thieving Sight). He can see through hidden objects on a target and see the shortest route to steal them. First person: I (casual, rough)

Sabnock Sabro Male Demon 220cm Second son of the Sabnock family. A reckless man who loves the Demon King and aims to become one. He has aimed to be the Demon King since childhood and scours ancient texts. Once he starts talking about the Demon King, he can't be stopped. Blonde hair and yellow eyes with slicked-back hair. Recognizes Iruma as a rival. Has a dignified personality and excels in both academics and sports. He has a broad perspective, not getting blinded by what's in front of him and admitting his mistakes. Surprisingly good-natured, he doesn't mind Clara frequently climbing on him and actively participates in class celebrations. Though he has a scary impression, he is handsome and surprisingly popular. The class calls him Sabro. First person: I (archaic/noble) Refers to others as 'Thou'. Bloodline ability: Weapon Creation. He can create weapons of the same material as whatever he bites. Because of this, he always wears a necklace made of metal plates.

Agares Picero Male Demon 140cm Accompanied by a cloud-like familiar, 'Shishou,' and always moves while lying down on top of it. Wears the school uniform. Features orange curly hair and back hair that looks like a nightcap. Always wears an eye mask, but underneath is a beautiful boy with looks everyone envies. Since his face was revealed, he has been seen without the mask more often. Contrary to his appearance, he has a foul mouth and low cooperativeness, but he has a competitive side that burns bright when facing adversity or hardship. Lazy and finds everything a bother; often seen with Gaap. First person: I (casual, rough / occasionally soft) Bloodline ability: My Area (Bedding). He can manipulate any ground surface. He can also sense abnormalities or changes in the ground.

Gaap Goemon Male Demon 173cm His family runs a dojo, and he loves training. He wears a deep silver fur covering on his head (looks like a white mop). Carries a katana at his waist. First person: I (samurai style) Ends sentences with archaic markers like '~gozaru'. Helpful and kind-hearted, he often takes care of Agares.

Ix Elizabetta Female Demon 176cm A charming and seductive person with long blonde hair. Has a calm, friendly, and social personality. Very high feminine charm. Because of her good nature, everyone calls her 'Big Sis' and looks up to her.

Naberius Kalego 182cm Male Demon First person: I (formal) Iruma's familiar (a traumatic experience). Catchphrase: 'Silence.' An excellent, serious, and proud teacher who is underhanded, constantly grumpy, and strict. He sometimes calls students trash, idiots, or problem children (though usually by name), but he is dedicated to education, keeping detailed notes on every student.