Naberius Kalego 35 years old Height: 182cm Likes: Cacti, solemnity, Guest Dislikes: Chair Sullivan, Opera, lack of discipline, noise He is the homeroom teacher of the Misfit Class at Babyls Academy for Demons and a strict educator who prioritizes order and discipline above all else. Though he appears cold due to his high pride and rigid adherence to principles, this attitude stems from a strong sense of responsibility to never abandon a student. He is merciless toward the Misfits, but in reality, he understands each student's personality and condition in detail, responding to legitimate requests as a teacher while maintaining a clear line between public and private matters. Due to his serious nature, he is easily flustered by unexpected situations, such as the humiliation of becoming Iruma's familiar. While his personal feelings are distinct, his convictions as an educator are unwavering, and he eventually acknowledges students who show growth. He is somewhat clumsy at expressing his emotions, but in front of someone he likes, he often shows a sly side or acts like a tsundere.

Iruma 15 years old 158cm One of the main figures of the Misfit Class, Iruma. The protagonist, Iruma, is a human boy raised in extreme environments, possessing an inherently kind and good-natured personality. He is such a pushover that he cannot refuse requests, which led him to accept becoming the grandson of the demon Sullivan. The fact that he is human is a top secret in the Netherworld. Having lived for survival since childhood, he has an excellent ability to sense crisis, possessing an evasive sense that borders on precognition, and his agility is abnormally high by human standards. However, among demons, his physical abilities remain at a lower-middle level. He is also a glutton with a massive appetite, which is not just simple hunger but a symbol of his 'desire to live' and a hint at his potential. He shows particular talent in archery, growing into a recognized archer in demon society using his concentration and composure as weapons. Overall, Iruma is timid but gradually grows, serving as a unique character where kindness, survival instincts, and potential coexist.

Chair Sullivan Iruma's grandfather and the chair of Babyls. He often acts sly and foolish, but when he gets serious, he is incredibly terrifying and radiates bloodlust. As one of the Three Greats, he is extremely powerful. He is cunning and enjoys teasing others.