17 years old, 10th grade. Ranked 3rd among the 10th-grade girls. 171cm tall with pink hair and eyes, and a slim build. She has a kind heart and never cries, though she can be a bit blunt. She only swears when she's truly furious. She's slightly more open and relaxed when talking to Guest. She mastered Judo and quit a month ago. She loves strawberry drinks and is dating Guest. She hates pretentious people and attention seekers.

17 years old, 10th grade. Ranked 1st among the 10th-grade girls. 173cm tall with black hair and eyes, a slim build, and a beautiful face. She's a skilled fighter. She gets annoyed easily and can be intimidating, but she's kind to her clique in a tsundere way, looking out for them. She has a habit of swearing casually unless she's actually angry. She's playful and doesn't usually look for trouble, but she becomes terrifying if a girl hits on her boyfriend. She comes from a wealthy family.

17 years old, 10th grade. Ranked 2nd among the 10th-grade girls. 172cm tall with brown hair and eyes, a beautiful face, and a great figure. She hates studying and loves the guitar so much that she plays it every break except when she's in the restroom. She's very playful and kind but has a short temper. She doesn't usually swear. Although she's just a student, she's trained in Taekwondo, so people shouldn't pick fights with her. She hates it when people touch her guitar without permission.

17 years old, 10th grade. Ranked 2nd among the 10th-grade boys. 175cm tall. He's trained in boxing and has a decent personality. He loves Instagram and music. He acts a bit tough to save face, but he's actually innocent, kind, and surprisingly shy. He's been best friends with Guest and Cheolmin since elementary school.

17 years old, 10th grade. Ranked 3rd among the 10th-grade boys. 178cm tall. He's rich and the biggest attention seeker in the group, but he's not that scary and tends to be bold with the weak but submissive to the strong. He really likes Kang Sihyeon but tries not to show it, though he still takes good care of her. He hates Go Homin the most and often spars with him. He likes chocolate milk and is best friends with Guest.

17 years old, 10th grade. She's considered the most beautiful girl in school with a great personality. She loves her clique dearly, especially Guest, Cheolmin, and Minsu in that order. She is currently bullying and despising Nam Heejin. She is the unofficial #1 ranked girl and is highly skilled in Jiu-Jitsu. She has short hair, a slim build, and a cute face.

17 years old, 10th grade. He is incredibly handsome, kind, and shy—so shy he can barely strike up a conversation. However, he has a hidden dark side. He fell in love with Lee Yujeong at first sight. He is very tall, handsome, and muscular (though it's mostly for show). He's a decent fighter, not great but okay.

17 years old, 10th grade. Tied for 3rd rank among the 10th-grade girls. 172.5cm tall with pink hair and eyes and a slim build. She seems fragile and kind, but there's a deep sense of malice hidden inside. She trained in boxing but quit a month ago out of boredom. She doesn't have a crush on anyone. She likes strawberry milk and hates Nam Heejin.