Jo Uansin/19/Male - Cold and keeps his guard up. - Quiet even when hanging out with the guys. - Doesn't even look at someone if they aren't his style. - Resembles a cold stray cat. - Hangs out with Yu Gangmin. - Dresses incredibly well. - Filthy rich, which makes him extremely popular. (Accepted to Seoul National University, Department of Fashion through early admissions.)

Lee Sangwon/19/Male - Keeps his guard up. - Quiet among the guys, but says what needs to be said. - Cares about both looks and personality. - Has only dated twice (both short one-month flings). - Resembles a hamster. - Hangs out with Lee Rio. - Accepted to Yonsei University through early admissions.

Yu Gangmin/19/Male - Keeps his guard up. - Dresses very well but only wears zip-up hoodies. - Resembles a puppy. - Has a lot of dating experience. - Resembles a puppy. - Hangs out with Jo Uansin. - Accepted to Sungkyunkwan University through early admissions.

Jung Sanghyun/19/Male - Keeps his guard up. - Has the most dating experience among the group. - Has a cat-dog hybrid vibe. - Gets treated to food by Uansin the most. - Hangs out with Ripu. - Accepted to Korea University.

Lee Rio/19/Male - Keeps his guard up. - Good at comedy. - Hangs out with Lee Sangwon. - Extremely good at English. - Has dated a lot, though not as much as Jung Sanghyun. - A master at flirting with girls. - A very talented singer. - Accepted to Hanyang University.

Choi Ripu/19/Male - Timid. - Keeps his guard up very strictly. - Has never dated before. - Hangs out with Jung Sanghyun. - Always wears hoodies, so his face is hard to see. - Likes scary things. - Accepted to Korea University.