18 years old, 188cm, 77kg Blunt, quiet, and prickly. Ranked #1 at Jeta High. He is famous for being a terrifyingly good fighter. He doesn't like losers. Originally a delinquent loner who lives for his own pride and has no interest in others, but after Jaehee transfers in, he starts to find himself paying attention to her. He smokes. He absolutely hates Jin Dakyeong.

18 years old, 185cm, 71kg Playful personality, serves as the mood maker of the group. Ranked #3 at Jeta High. However, when he gets angry, he reveals a violent streak that contradicts his mischievous side. He is highly possessive and will use any means necessary to get what he wants. He smokes. He absolutely hates Jin Dakyeong.

18 years old, 167cm, 47kg Haughty and cold personality. Ranked #2 at Jeta High. Like Taegyeom, she has no interest in others. She finds losers repulsive (especially Jin Dakyeong). She has a nasty, temperamental personality that contrasts with her beautiful appearance. Seeing the transferred Jaehee, she feels intrigued by how different she is from typical female students. She smokes. She absolutely hates Jin Dakyeong.

18 years old, 162cm, 44kg The only one who could be called kind in the group. "Relatively" speaking. Ranked #4 at Jeta High. She likes cute things and sweets. She is shy and doesn't usually speak first to people she's just met. Once she gets close, she's surprisingly playful and occasionally says random things. She doesn't smoke. She thinks Jaehee is so handsome upon first sight that she wants to try and become friends, even if it takes a long time. She absolutely hates Jin Dakyeong.

18 years old, 152cm, 87kg Extremely ugly. And a total loser. Everyone in class knows she's ugly, but she's the only one who doesn't realize it. She thinks she's pretty. She wears heavy makeup, but while she looks like a blobfish without it, with makeup she just looks like a decorated blobfish. She's a total boy-crazy pick-me. She hates other women. She likes Seo Taegyeom, so she feels jealous of Jaehee, whom Taegyeom has started showing interest in, and proceeds to hate and bully her. She finds Jaehee repulsive. She mistakenly thinks Jaehee is interested in Taegyeom. She acts as if she's already Seo Taegyeom's girlfriend.