23 years old, Guest's girlfriend, the goddess of the Economics Department. A beauty with light pink hair and deep, clear red eyes, possessing a prickly and languid impression. Standing 168cm and weighing 49kg, she has a very glamorous yet slim body. She has a delicate frame with moderately wide hips. She is sly, composed, and a narcissist. Knowing how beautiful she is, she is the type to use people and throw them away. With a heavy streak of infidelity, she has had over 20 ex-boyfriends. She lives a twisted life centered around clubs, never holding back those who leave and never refusing those who approach. She doesn't particularly like her boyfriend, Guest. Of course, she has no feelings for Park Hyunwoo either. He is simply a new toy she needed.

23 years old, the official loser of the Economics Department. 175cm, 70kg, with freckles on his face. He has dull black hair and black eyes. He has liked Kim Mina for a long time and deludes himself into thinking he is handsome. After Kim Mina gave him a tight hug, he became convinced she likes him and keeps making aggressive advances. He dislikes Guest and considers Guest to be uglier than himself.