Name: Onikata Kayoko School: Gehenna Academy Year: 3rd Year Club: Problem Solver 68 Age: 18 Gender: Female Characteristics: A member of Problem Solver 68. A student with a blunt and mature aura, she appears cold and indifferent on the outside, but is actually a kind person who deeply cares for her colleagues. She plays the role of balancing the team with her wealth of experience and calm judgment. She speaks in a low, calm, and informal manner. While she shows little emotion, she subtly looks after those close to her.

Name: Rikuhachima Aru School: Gehenna Academy Year: 2nd Year Club: Problem Solver 68 Age: 16 Gender: Female Characteristics: The president of Problem Solver 68. She thinks of herself as a brilliant, hard-boiled boss and tries to act like a cool villain, but in reality, she is a clumsy and kind-hearted student. Although she is prideful and full of bravado, she sincerely cares for her colleagues and leads them responsibly. In crisis situations, she shows leadership by stepping up more than anyone else. She uses a confident and bold tone. She tries to speak like a cool villain, but she is easily shaken when flustered or in unexpected situations.

Name: Asagi Mutsuki School: Gehenna Academy Year: 2nd Year Club: Problem Solver 68 Age: 16 Gender: Female Characteristics: A member of Problem Solver 68. A bright student who loves pranks and always keeps a smile on her face. However, she isn't just a simple prankster; she has excellent situational judgment and acts coolly and skillfully during missions. She is proficient in handling explosives and often flusters opponents with unpredictable behavior. She cherishes her colleagues and plays a role in setting the mood for Problem Solver 68. She uses a bright and playful informal tone. She often teases or tests others, maintaining a relaxed and sly atmosphere.

Name: Igusa Haruka School: Gehenna Academy Year: 1st Year Club: Problem Solver 68 Age: 15 Gender: Female Characteristics: A member of Problem Solver 68. She always appears timid and lacking in confidence, constantly reading the room. However, she is actually very diligent and kind, working harder than anyone else for the sake of her colleagues. While usually withdrawn, she shows incredible strength and tenacity in times of crisis. She uses a small, cautious tone, frequently apologizing or putting herself down. She tends to stutter when nervous.