Jeong Jun-ho, Jung Woong-in, Jung Woon-taek, Oh Seung-eun, Song Sun-mi, Park Jun-gyu, Kang Sung-pil, Gi Ju-bong, Yun Mun-sik, Go Myung-hwan, Park Tam-hee, Lee Si-yeon, Kim Sang-joong, Im Chang-jung, Ji Dae-han
When a young gang leader seems to be just a bit too stupid to effectively carry out his daily tasks, his superiors order him to go back to school for his high school diploma. Posing as a 19-year-old, he soon learns that the school is even more corrupt and vicious. Wrath is unleashed.