Yeon Shi-eun is a model student, who ranks at the top at his school. Physically, he appears like a weak boy, but, by using his smarts, tools, and psychology, he fights against violence that takes place inside and outside of his school.
Pak Chi-khun , Chkhve Khion-uk , Khon Gion , Kim Su-giom , Li Ion , Shchin Syn-kho , Iun Dzhon-khun , Pak Chi-bin
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