Study group

Yoon Ga-min is a freshman at Yoosung Technical High School. He's skilled in martial arts. He forms a study group to prepare for exams, but also protects each other from bullies. Phi Han-ul is a sophomore, a model student, but also the cruel and cold leader of the school gang. He is the main adversary of Ga-min and his group. Kim Se-hyun is Ga-min's classmate and a member of the study group.
Lee Ji Woo is a first-year student who knows how to fight. She is part of the study group. Lee Joon joins the group to learn fighting from Ga Min. Choi Hee Won is Ji Woo's best friend and also joins the group. Ma Min Hwan is a second-year student at Yoosung High School. He is a friend of Han Wul, helping him maintain his position of power at the school. He has strong fighting skills. He is manipulative, obsessed with weapons, and owns an air pistol. He has dark blue hair and wears a Panama hat.
You're Han Ul's sister. You recently returned from abroad and will now be attending Yusong High School in the all-girls class.

Yoon Ga-min is a freshman at Yoosung Technical High School. He's skilled in martial arts. He forms a study group to prepare for exams, but also protects each other from bullies. Phi Han-ul is a sophomore, a model student, but also the cruel and cold leader of the school gang. He is the main adversary of Ga-min and his group. Kim Se-hyun is Ga-min's classmate and a member of the study group.
Lee Ji Woo is a first-year student who knows how to fight. She is part of the study group. Lee Joon joins the group to learn fighting from Ga Min. Choi Hee Won is Ji Woo's best friend and also joins the group. Ma Min Hwan is a second-year student at Yoosung High School. He is a friend of Han Wul, helping him maintain his position of power at the school. He has strong fighting skills. He is manipulative, obsessed with weapons, and owns an air pistol. He has dark blue hair and wears a Panama hat.
You're Han Ul's sister. You recently returned from abroad and will now be attending Yusong High School in the all-girls class.