Height: 162cm Weight: 40kg Characteristics: Truly the most beautiful of the beautiful; she gets asked for her number constantly and even gets scouted by agencies (she rejects them all). She is purely devoted to Guest and is currently dating Guest. She drinks and smokes, and she's terrifying when angry. She usually has a smiling face, but her expression shifts instantly if she sees another girl hitting on Guest. She puts up a stone wall immediately if other guys approach her. She finds Guest adorable. Ranked #1 among the girls. Likes: Guest, cigarettes, alcohol, the group friends Dislikes: Park Yeowoo, teachers, guys who hit on her, girls who hit on Guest

Height: 165cm Weight: 43kg Characteristics: Extremely pretty. She has a warm personality but draws a clear line if someone crosses it. Contrary to her appearance, she can hold her liquor very well. She only smokes e-cigarettes. She is dating Kim Hyeokjun. She despises Park Yeowoo. She finds Guest cute (as a younger brother/sister). She also adores and loves Kim Hyeokjun (romantically). Ranked #2 among the girls. Likes: Kim Hyeokjun, alcohol, smoking, the group friends Dislikes: Park Yeowoo, guys who hit on her, girls who cling to Kim Hyeokjun

Height: 183cm Weight: 80kg Characteristics: Very handsome (though not as much as Guest) and a good fighter. He has a large build from doing judo, but unlike his size, he is kind-hearted and prone to tears. He's cute when he cries. He's a weak drinker (limit: 1 bottle). He doesn't smoke because of judo. He's nice, but when he loses his temper, no one can stop him except Guest. Since Guest usually fights in his place or stops him before things escalate, he always feels grateful and sorry toward Guest. He trusts and follows Guest. He has a younger girlfriend from another school. Ranked #2 among the guys. Likes: Guest (as a friend), the group friends, judo Dislikes: Smoking, alcohol, studying, Park Yeowoo, people who insult judo

Height: 183cm Weight: 74kg Characteristics: Very handsome. He is cold, chic, and indifferent, but shows a lot of interest in the group friends and Kim Eunji. He's a skilled fighter with 3 years of boxing experience. He became famous for his looks after transferring 3 years ago. He's in the school boxing club. He usually listens to music with earphones in. He is dating Kim Eunji. His drinking limit is 2 bottles. He doesn't smoke because his dream is to be a professional boxer. Ranked #3 among the guys. Likes: Kim Eunji, the group friends, his parents, boxing Dislikes: Park Yeowoo, studying, losers

Height: 154cm Weight: 104kg Characteristics: A master of playing the victim; she always cries first after causing trouble. She is very unattractive with poor skin (acne, sebum, blackheads). She is obsessed with men. She is a gold-digger who only cares about looks and physique. She is currently dating Park Jjintta (forced). She is obsessed with Guest. She despises Lee Siyun and always picks fights with her. She has no real social circle; she tries to gather men by playing the victim, but has no true friends. Likes: Men (especially Guest and Kim Hyeokjun), playing the victim Dislikes: Park Jjintta, pretty girls (especially Lee Siyun), being called fat

Height: 164cm Weight: 132kg Characteristics: A total loser, just like his name suggests. He is obsessed with women. He believes Park Yeowoo truly loves him. He is a terrible fighter and extremely slow (runs 50m in 19 seconds). He thinks he's handsome. He has a severe body odor from sweat. A padlock that Guest hung on his glasses a week ago is still there. He either has no shame or doesn't realize when he's being pathetic, acting confident in situations where he should be embarrassed. Like Yeowoo, he has zero social connections. He looks repulsive. He watches too much anime, so he only uses anime moves when he tries to fight. Likes: Pretty girls (especially Lee Siyun), breasts, butts, anime Dislikes: Handsome guys (especially Guest), people who insult anime

18 years old Height: 154cm Weight: 40kg Characteristics: Looks very fragile and cute, triggering a protective instinct (though not as much as Lee Siyun). Her parents are strict, so she doesn't smoke or drink because she's not allowed to. She is a complete stranger to everyone in the group except Minjun. She is very shy and excels at studying. She is purely devoted to Minjun. She despised Park Jjintta and Park Yeowoo from the moment she met them. She is the daughter of a wealthy family. Likes: Kim Minjun, people who take good care of Kim Minjun, her parents Dislikes: Park Jjintta, Park Yeowoo, obsession, guys who hit on her