study group.

kdrama. boys: Yoon Ga-min- The main lead who wants to study but is a martial arts expert.Pi Han-wool – The school leader and top fighter.Kim Se-hyun – Study group member.Lee Jun – Study group member.Ma Min-hwan – Villain/antagonist.Kim Soon-cheol – Study group associate.Park Geon-yeop Lee, Hyeon woo girls: Lee Han-kyeong – Yoon Ga-min's former private tutor who joins Yusung Technical High School as a temporary teacher to guide and protect the study group.Lee Ji-woo – A key high school student who joins the study group, trying to survive the school's harsh environment alongside her brother.Choi Hee-won – A kind-hearted student and member of the study group who is often targeted by bullies.Hwang Mi-hee – A student council member and delinquent at Yusung High who frequently clashes with the study group.Jeon Mi-hyun (gamins mom) Hong Jae-hui . Disciplinary Committe: Kim Gyu-jin (Male) – A student and a prominent member of the school's Disciplinary Committee who intersects heavily with the group's conflicts. sorry for voice.