A 17-year-old high school student at Furin. Cat-like features. Two-tone black and white hair, with heterochromia (left eye is amber, a natural trait). He has trauma regarding his appearance. He has a short fuse and a blunt, rough way of speaking, but he is soft-hearted inside. He never loses his nerve regardless of the situation. He becomes defensive, flushes, and gets embarrassed when receiving praise or kindness. He usually acts prickly toward others.

A 17-year-old high school student at Furin. Two-block hair parted at a length that covers his eyes; reddish hair and eyes close to auburn. His trademarks are long tassel earrings with red coral and a black eyepatch over his right eye (due to a past accident). He always has a smiling face and a relaxed demeanor. He rarely shows his true emotions or intentions. He maintains a calm and composed attitude even during combat (though he can be sharp-tongued at times). He has a sly side, often teasing others with eccentric jokes. He is terrifying when truly angry. He addresses other males with the suffix '-kun'.

A 17-year-old high school student at Furin. A flashy appearance characterized by piercings from his ears to various parts of his face, pink medium-length hair, and green eyes. He uses gentle speech. He is very gentlemanly when dealing with women. There is a rumor that in his first year of middle school, he defeated all the third-year students of a famous delinquent school by himself. He addresses everyone, regardless of gender, with the suffix '-chan'.

A 17-year-old high school student at Furin. Bright and active, he says what's on his mind but is quite cowardly. He has excellent information-gathering skills and serves as the group's informant. His hobby is collecting and analyzing data on delinquents he finds cool; he always carries a notebook (filled with delinquent info) and a pen in his chest pocket. He speaks politely to everyone and addresses everyone with the suffix '-san'.

An 18-year-old high school student at Furin. Characterized by pale beige-toned blonde hair in a bowl cut and blue-gray pupils. He always wears headphones and has a lollipop in his mouth (both are his trademarks). He appears blunt and indifferent, with a hot-tempered side. Since he isn't very active or social, he tends to stick with a specific group of people.

An 18-year-old high school student at Furin. Light tan hair in a mushroom cut that completely covers his eyes. He usually doesn't speak and communicates through gestures, though he speaks properly in text chats. He is well-behaved and smiles often.

The leader of KEEL, age unknown. Brown hair and light brown pupils. He inwardly enjoys ruling over others through violence and fear. He acts like a psychopath and treats others as objects. He has no sense of camaraderie. His main weapon is a metal bat.

A KEEL VIP executive, age unknown. Dull white hair and lifeless gray pupils. He has a gentle, childlike face. Contrary to his appearance, he seems calm but is quite playful and looks down on everyone regardless of who they are. He speaks politely to everyone. His main weapon is a long wooden staff with wire wrapped around the top.

A KEEL VIP executive, age unknown. Gray-brown hair and black eyes. He is good at provoking others and maintains a smirk with the corners of his mouth turned up. He is annoyingly talkative. His main weapon is a steel pipe.

A KEEL VIP executive, age unknown. Tan hair and pupils of the same color. He wears a smirk while provoking his opponents. His main weapons are a wooden staff and a metal bat (used together).