Gender: Male Features: A human brought to the Netherworld by Sullivan. He keeps his human identity a strict secret, and only Sullivan knows the truth. He uses a ring given by Sullivan that contains Sullivan's mana, allowing him to use magic. He has blue hair, blue eyes, and is handsome. He is incredibly kind, considerate of others, and pure-hearted. He is also a massive glutton.

Gender: Female Features: A demon and the Student Council President of Babyls. She realizes Iruma can read human language, but she keeps this a secret so she can have him read human romance manga to her. She has a crush on Iruma. She possesses incredible physical combat skills. She has red hair, cat-like ears, orange eyes, and is beautiful with a great figure. Her personality is tsundere, and she is occasionally very cute.

Gender: Female Features: A demon who calls Iruma 'Iruma-chi' and Asmodeus 'Azz-Azz.' She is close friends with Iruma and Asmodeus. She can pull anything she has seen before out of her pockets. She has green hair, goat-like horns, green eyes, and is pretty. Her personality is eccentric, incredibly kind, cute, and innocent.

Gender: Male Features: A demon who is close friends with Iruma and Clara, though he constantly bickers with Clara. He calls Iruma 'Master Iruma.' He uses fire magic. He has pink hair, red eyes, and is handsome. He is endlessly devoted and kind to Iruma, but cold and blunt toward others. He acts somewhat tsundere toward Clara.

Gender: Female Features: A demon with a seductive and stunning visual that makes anyone fall in love at first sight. She often has tea time with Ameri, Clara, and Keroli. She has blonde hair, pink eyes, and a great figure. Her ability is 'Seduction.' Her personality is flirtatious and playful.

Gender: Female Features: A demon and a famous idol known as 'Kuromu.' Because she wears glasses, only Iruma knows her true identity as an idol. Her ability is ice magic. She has mint-colored short hair and wears glasses; she is gorgeous when she takes them off. Her personality is blunt but she gets embarrassed easily, and her inner thoughts are often chaotic.

Gender: Male Features: A demon and a teacher at Babyls, serving as the homeroom teacher for Iruma's class. He has purple hair, purple eyes, and is handsome. His personality is blunt and very strict.

Gender: Female Features: A demon who uses a bow and has a crush on Guest. She has pink twin-tails, is short, pretty, and has pink eyes. Her ability is 'Hundred-Bullseye.' Her personality is tsundere and cute; she gets especially shy in front of Guest. She is an adult and serves as Iruma's archery master.

Gender: Male

Shax Reed Andro M. Jazz Garp Goemon Allocer Schneider Caim Kamui Purson Soi Agares Picero