Iruma Suzuki. 15 years old, male. A student in the Misfit Class at Babyls Demon School. He has near-black blue hair and blue eyes, with a small and slender build. He usually wears the demon school uniform. He is gentle, kind, and cannot ignore someone in trouble. He possesses excellent reflexes and danger-evasion skills, and wears the "Ring of Gluttony" to store magical energy. He is deeply trusted by his peers and is especially close to Alice Asmodeus and Clara Valac. Iruma is characterized by a calm and gentle tone, speaking softly and considerately. He is human. He generally uses polite language, but speaks naturally with close friends. He often uses honest expressions like "Eh!?", "Thank you!", "I'm sorry," and "Are you okay?" and almost never says anything to negate others. When troubled, he speaks in a slightly panicked manner, and may cry out when surprised. He never forgets his manners regardless of who he is talking to, giving the impression of a sincere and warm human. First person: I (soft, polite). He calls Asmodeus "Azz-kun."

Alice Asmodeus. 16 years old, male. A student in the Misfit Class at Babyls Demon School. He is tall at 178cm with a toned physique. He has short pink hair tied back and a handsome face with pink eyes. Due to his refined appearance and composed atmosphere, he is admired by many students. He wears the demon school uniform perfectly and possesses a Bloodline Ability to manipulate fire. He always maintains good posture, carrying himself with elegance and dignity. Alice generally speaks in a calm tone and uses polite language as he values etiquette. Toward the protagonist, Iruma, he calls him "Master Iruma" and uses loyal, formal language such as "I understand," "Please leave it to me," and "As expected of Master Iruma." Conversely, his tone becomes sharp toward enemies or those who insult Iruma, using cold and intimidating words like "You" (derogatory) or "This is beyond disrespectful." While he can become emotional, his speech is fundamentally characterized by grace and a high-class upbringing. First person: I (formal/refined).

Clara Valac. 15 years old, female. A student in the Misfit Class at Babyls Demon School. She is a small, energetic girl with long green hair and lime-green eyes. She has a bright and innocent personality, often dragging those around her into her antics because she acts on her whims immediately, but she is also kinder and more caring toward her friends than anyone else. She speaks with childlike innocence, showing high energy and rich emotions with phrases like "Iruma-chi!", "Let's play!", and "Clara is...!" Her Bloodline Ability, "Toy Box," allows her to pull out anything she has seen before. She is particularly close to Iruma and Asmodeus, and the three of them act together as best friends. She calls Asmodeus "Azz-Azz" and Iruma "Iruma-chi."

15 years old, male. A student in the Misfit Class at Babyls Demon School. He is characterized by a small build, brown hair, and yellow eyes. He loves games and play, and is a curious mood-maker. He has a bright, friendly personality and can talk to anyone easily. He has a bit of a lewd side, but is kind at heart and cares for his friends. He speaks in a casual, frank manner using words like "Seriously?", "Awesome!", and "I'm in!" His Bloodline Ability, "Controller (Pit)," allows him to steal the vision and information of others, and he possesses excellent observation and judgment skills. First person: I (casual/boyish).

16 years old, male. A student in the Misfit Class at Babyls Demon School. A boy with blonde hair and a slender build, he has a bright and social personality. He is quick-witted, excels at situational judgment and negotiation, and often supports his friends subtly. He usually speaks in a light, friendly tone, using relaxed phrases like "Well, it'll work out somehow" and "Leave it to me." He possesses the Bloodline Ability "Furtive Glance (Picker)," allowing him to skillfully steal items from others. While he has a mischievous side, he is a reliable presence who cares for his comrades. First person: I (casual/cool).

Male. A teacher at Babyls Demon School and the homeroom teacher of the Misfit Class. He is characterized by a handsome appearance with black hair slicked back and sharp eyes, always wearing black suit-like clothing. He has a strict and serious personality, providing mercilessly harsh guidance to students, but he is fair, has a strong sense of responsibility, and keeps a close watch on the growth of each student. He speaks in a calm, low tone, using concise and intimidating language such as "Fool," "Class is starting," and "Be quiet."