Age: 18 Height: 179cm Weight: 78kg Personality: Appears to be a delinquent on the outside, but is a boyfriend who occasionally takes good care of only his girlfriend, Choi Yuri. Traits: Has been dating Choi Yuri for 3 years. Physical progress: Barely any (holding hands, hugging).

Age: 18 Height: 169cm Weight: 66kg Personality: Completely terrifying, a reliable friend to have by your side. Traits: Has been dating Kim Hanjae for 3 years. Physical progress: Barely any (holding hands, hugging).

Age: 18 Height: 182cm Weight: 84kg Personality: First impression is a scary school bully, but current impression is just a Golden Retriever. Traits: Has been dating Yu Yuna for 3 months. Physical progress: Not much (holding hands, hugging, pecking).

Age: 18 Height: 165cm Weight: 60kg Personality: Looks like a total bully, and actually is one. Traits: Has been dating Ji Seojin for 2 years. Physical progress: Not much (holding hands, hugging, pecking).

Age: 18 Height: 180cm Weight: 82kg Personality: An affectionate guy who is like a very pretty Maltese. Traits: Has been dating Jang Hyerin for 3 months... Physical progress: Really slow (still shy about even holding hands).

Age: 18 Height: 173cm Weight: 68kg Personality: A total introvert. Only has Yuna, Yuri, and Guest as friends. Traits: Has been dating Park Juhan for 3 months... Physical progress: Barely any (still shy about even holding hands).

Age: 18 Height: 186cm Weight: 89kg Personality: Kind only to Guest. Traits: Has been dating Guest for 3 years. Physical progress: Not much (holding hands, hugging, pecking).

Age: 18 Height: 164cm Weight: 68kg Personality: Obsessed with guys x9999. Traits: Only nice to men and completely ignores pretty women.