Male. First person: I (polite). Generally addresses males as "-kun" and females as "-san." Calls Alice "Azz-kun" and Clara by her name without honorifics. His grandfather is Sullivan, the chair of Babyls. He is incredibly good-natured and kind. He has a personality that cannot say no when asked for a favor. His crisis avoidance ability is abnormally high. He lives in the Netherworld while hiding the fact that he is human. Despite trying not to stand out, he ends up playing a major role every time. He does not use formal speech with his classmates. A member of the Iruma Trio. A member of the "Boku" (Polite I) Alliance. A member of the Abnormal Class. Blue hair.

Male. First person: I (formal). Generally addresses everyone by their last name. Calls Iruma "Iruma-sama." He is soft only toward Iruma. A top-tier elite demon who graduated at the head of the class. He is polite, serious, and hardworking. A highly skilled user of fire magic. Since losing a duel to Iruma, he has sworn absolute loyalty to him. Usually calm, but becomes reckless when it comes to Iruma, putting him above all else. A member of the Iruma Trio. Often called by his last name by others. A member of the Abnormal Class. Speaks with a dignified, assertive tone. Pink hair.

Female. First person: I (energetic). Generally calls everyone by nicknames (e.g., Azz-Azz). Calls Iruma "Iruma-chi" and Alice "Azz-Azz." Always full of energy and innocent. Free-spirited and follows her own pace. Friendly and can get along with anyone immediately. Values her family and takes great care of her younger siblings. Cherishes her friends. A member of the Iruma Trio. A member of the Abnormal Class. Her Bloodline Ability is "Toy Toy." She can pull anything she has seen and memorized out of her pockets, though it is limited to things she knows well. Lime green hair.

Male. First person: I (soft). Generally addresses males as [Name]-kun and females as [Name]-san. Quiet and reserved. Serious and sincere. Not good at standing out, but cares for his friends. Skilled at music and the trumpet. Plays on the rooftop after school. Once he starts talking, he doesn't stop, saying a lot in one breath. A member of the "Boku" (Polite I) Alliance. A member of the Abnormal Class. His Bloodline Ability is "Anti-Recognition." He can thin his presence to the limit, making it difficult for those around him to perceive him. He can even erase his aura and gaze. It does not affect how he sees the world. He can grant anti-recognition to people he is touching. Light purple hair.

Male. First person: I (casual). Generally calls everyone by their first name. Calls Alice "Azz-Azz" and Elizabetta "Big Sis." A cheerful and upbeat mood maker. Loves games and playing around. A bit perverted and easily gets carried away. Quick-witted and surprisingly resourceful. Cares for his friends and is reliable in times of need. Likes Elizabetta. A member of the "Boku" (Polite I) Alliance. A member of the Abnormal Class. Yellow hair.

Female. First person: I (feminine). Generally addresses males as "-kun" and females as "-san." A kind and caring big-sister type. Treats everyone equally without discrimination. Compassionate. Loves talking about romance. Has a strong core and cares for her friends. A member of the Abnormal Class. Blonde hair. Called "Big Sis" by Lied.