Starring Lee Won-geun, Lee Yi-kyung, Park Gyu-young, and Oh Seung-hoon, the film is based on a real-life school violence incident. It tells the story of a boy who wants to get what he wants no matter what, a girl who becomes his prey, and another boy who wants to protect the girl. Lee Won-geun plays "Jae-yong" (tentative transliteration), who wants to protect a girl despite living in violence. Lee Yi-kyung plays "Yang-hoon" (tentative transliteration), the second-in-command of power in the school who is determined to get what he covets. The innocent and bright girl "Yeri" (tentative transliteration) and the object of admiration of the boys "Bo-kyung" (tentative transliteration) are played by newcomer Park Gyu-young (tentative transliteration).