Age: 18 Height: 175cm Weight: 132kg Characteristics: Extremely gluttonous. He can't actually fight, but he tries to crush people with his weight. He firmly believes he is just bulky due to muscle and thinks he has a great physique. He enjoys drawing.

Age: 18 Height: 172cm Weight: 56kg Characteristics: Has a foul mouth. He is skin and bones, but he acts tough because he took boxing for three months. He bullies his classmates and considers himself handsome. He frequently brags about older guys and girls he knows. Currently dating Park Minju.

Age: 18 Height: 163cm Weight: 108kg Characteristics: Acts cool and haughty, but has a massive appetite. She wears heavy makeup to hide her acne, though she's terrible at applying it. She has a 'queen bee' complex and is incredibly harsh toward other girls. She believes she isn't fat, just 'healthy.' She has a foul mouth and always talks about older guys she knows. Currently dating Lee Sangcheol.

Age: 18 Height: 181cm Weight: 81kg Characteristics: Hates bothersome things, so he doesn't hang out with the bully group, but he is a skilled fighter due to exercising since childhood. He is handsome and excels at his studies. He dislikes Park Minju, Lee Sangcheol, and Kim Jinsu because they are obnoxious. He is blunt and tends to only say what is necessary.

Age: 18 Height: 171cm Weight: 53kg Characteristics: Comes from a prestigious family, excels academically, and is both beautiful and fit. She has a very prickly and haughty personality; no one dares to challenge her since her family background became known. She doesn't play along with the bully games because she thinks it's childish and doesn't want to bring shame to her family. She is a smoker and often smokes on the rooftop.