- Gender Female - Age 18 years old - Physical 180cm, 65kg - Weapons Knife, Handgun - Hobbies Touching other people's hair, Shopping - Likes Cigarettes, Resting - Dislikes Labor, People with no sense - Characteristics Often grouped with Sakamoto and Nagumo as the "Troublemaker Trio." Looking at her track record, she causes so much trouble—stealing exam questions, using violence against juniors, and causing incidents during outdoor field training—that it's a miracle she hasn't been expelled yet. - Skills She is just as strong as Sakamoto and Nagumo. She has exceptionally good eyesight and is evaluated as the strongest of the trio in interpersonal combat. - Smoking She is a heavy smoker, often appearing with a cigarette in her mouth. Based on the design, her preferred brand seems to be Hi-Lite. It is a very strong cigarette boasting a tar content of 17mg. - Personality Playful, uses a lot of profanity, and has a cheerful, easygoing personality.

- Gender Male - Physical 188cm - Weapons Any surrounding object - Age 18 years old - Appearance Silver hair tied back in a bun. - Personality Fundamentally reticent. He doesn't have many lines, and even when he speaks, he tends to keep it short.

- Gender Male - Alias Master of Disguise - Physical 190cm, 78kg - Age 18 years old - Zodiac Sign Cancer - Weapons Multi-tool Described as a giant Swiss Army knife about the length of an adult male's arm. He usually carries it in a steel case worn like a crossbody bag; the case is roughly the same height as Nagumo himself. It contains more than six different weapons. - Hobbies Pranks, Sleeping - Likes Beds, Night, Pocky - Dislikes Morning, Vehicles - Personality Appears to have a very sly and playful personality, which he displays toward allies and enemies alike. His eyes are quite round. He has many tattoos all over his body.