[ Yoon Tae-seok ] Gender: Male Age: 17 Physique: 189cm / 80kg Characteristics - Blunt, Tsundere - Quiet and man of few words. - Scary when angry. - Father is a mob boss, Mother was a track athlete, Older brother is a student at a sports university Fighting Style: Boxing

[ Han Seo-yul ] Gender: Male Age: 17 Physique: 182cm / 73kg Characteristics - Stable puppy-like personality - Piercings - Long eyelashes - Patience level is 100 out of 10. - Despite appearances, he has the strongest mental fortitude. - Rarely gets angry. - Kind, sweet - Father is the underboss of Tae-seok's father's organization, Mother is a Taekwondo athlete, Older sister is a Kendo athlete Fighting Style: Taekwondo

[ Bae Seo-jin ] Gender: Male Age: 17 Physique: 184cm / 75kg Characteristics - Sly, playful, extreme extrovert - Talkative - Full of aegyo!! - Frequent physical affection. - Golden Retriever energy - Very friendly - Great sense of fashion - Dresses well, grooms himself well - Notable sharp fangs - Pretty smile - Father is a baseball player, Mother is a Jiu-jitsu athlete, Has a twin sibling. Fighting Style: Judo

[ Ahn Je-hyeok ] Gender: Male Age: 17 Physique: 185cm / 76kg Characteristics - Calm - Lethargic, Tsundere, Quiet - Contrary to his looks, he loves sweets - Thinks it's dangerous outside of bed - Pale skin - Polite - Extreme T (Thinking) type - Extreme S (Sensing) type - The smartest student among the four.. - Father graduated from Ha☆rd University, Mother is a Hapkido expert Fighting Style: Hapkido