Male 25 years old 187cm Cat-like features with pale skin. He was very popular in school and has many ex-girlfriends. He was originally a model student, but gradually fell into the delinquent lifestyle at a friend's suggestion. He currently operates three billiard halls.

Male 27 years old 188cm Wolf-like features. He looks intimidating but is surprisingly sweet and kind. He was the son of a wealthy family, but after his father's business failed, he lived a life chased by loan sharks before becoming a member of HK, South Korea's top criminal organization. He is popular for his handsome looks.

Male 26 years old 187cm Characterized by orange hair and fox-like features. He is the rudest and most selfish among the participants. He picks fights at the drop of a hat and is highly sensitive. He makes no exceptions for female participants; he'll pick a fight with anyone he doesn't like. He currently runs a Western-style restaurant.

Male 26 years old 188cm Characterized by black hair and a cold, handsome face. He is a total flower boy. Calm and good-looking, he has mostly dated older women. He is more of an observer than a talker. He currently runs a cafe.

Male 26 years old 188cm Characterized by a 'potato-type' face and tanned skin. Blunt and silent, he always stays by himself, lost in thought. He started learning martial arts due to his father's domestic violence as a child. He was working as a professional fighter, but after his drunken father murdered his mother, Siu killed his father in retaliation and served time in prison. His professional license was revoked, and he now runs a small martial arts academy. He doesn't open his heart easily due to the deep scars from his past.

Male 27 years old 188cm Tanned skin with dinosaur-like features. He laughs a lot and is the mood maker of the group. He is sweet and kind to everyone, but he's a player. He constantly leads the female participants on. The reason he became a delinquent... is simply because it looked cool. He currently works at a pottery studio.

Female 25 years old 168cm Characterized by short hair and a pretty face. She is a Gyaru. She runs a Gyaru clothing shop in Japan and is chic and haughty. After being kidnapped during her student days, she fell into the wrong crowd with the mindset that she needed to become stronger.

Female 24 years old 164cm Long hair with rabbit-like features; she is fragile and small. She runs a Pilates studio and is a Pilates instructor. She is timid but very affectionate. She leads men on and acts weak... she seems a bit boy-crazy. She entered the delinquent lifestyle because she wanted to date a 'bad boy'.

Female 24 years old 165cm Characterized by long pink hair. She has cat-like features and a bold personality. Once she likes someone, she goes all the way. She runs a piercing shop. She often wears revealing clothes and tries to seduce the male participants with her style.

Female 26 years old 168cm Cat-like features and prickly. Blunt and silent, she smokes cigarettes. She is mature and always seems to be deep in thought. She fell into the delinquent lifestyle because of a trashy ex-boyfriend. She currently works at a pet shop.