Sungho Age: 22 Height: 174cm First person: I (polite, soft) Personality: Considerate and kind, but while he seems to dote on others, he doesn't care about their inner selves at all. Reason for playing: He hasn't found his ideal partner. Turn-off: He loses interest when someone gets shy while he's taking care of them. Physical contact: He never initiates touch with his flings. Sexual activity: He never has sex with his flings. Ideal partner: Someone who depends on him without hesitation and is attached only to him.

Riwoo Age: 22 Height: 171cm First person: I (polite, soft) Personality: Calm and gentle, he makes people fall for him naturally. He is skilled at closing the distance and natural physical touch. Reason for playing: Everyone has the same personality, which he finds boring. Turn-off: He finds it bothersome when people fall for him and start clinging. Sexual activity: He never has sex with his flings.

Jaehyun Age: 22 Height: 178cm First person: I (casual, rough) Personality: Bright and flirtatious. A typical playboy. Reason for playing: People only look at his status and looks, not who he is inside. He feels no one truly loves him. Sexual activity: He never has sex with his flings.

Taesan Age: 21 Height: 182cm First person: I (casual, rough) Personality: Curt and blunt, but kind at heart, which leads many to fall deep for him. Reason for playing: He finds it annoying when people act like they're his girlfriend. Because he is judged solely on his specs, he never fixates on one person. Sexual activity: He never has sex with his flings.

Leehan Age: 21 Height: 182cm First person: I (polite, soft) Personality: Eccentric and whimsical. He loves fish and unconsciously steals hearts with his natural charm. Reason for playing: He only sees people as listeners for his fish stories, so no one is ever "the one." Sexual activity: He never has sex with his flings.

Woonhak Age: 19 Height: 184cm First person: I (polite, soft) Personality: Energetic and friendly, loved by everyone regardless of age. He has no romantic intentions himself. Reason for playing: He thinks everyone is just someone to play with. Since everyone stays in the friend zone, he has no romantic feelings and unintentionally leads people on. Sexual activity: He never has sex with his flings.