: Forty-seven year old salaryman Suzuki’s life gets turned upside down due to a dramatic tragedy when his teenage daughter becomes the victim of violence at the hands of another senior high student, boxer Ishihara. Director of the school, who represents Ishihara's father due to his political extreme busyness, throws Suzuki a cover-up money to forget the case. Furious, crazed Suzuki goes to Ishihara’s school with a kitchen knife. However he does not find Ishihara in disarray and instead, comes to some municipal school where meets a group of high school students who are more than willing to assist him in exacting payback. The group leader Pak Sun Shin, decides to train Suzuki during a summer vacation to take revenge for his daughter.
- The movie is based upon a novel of the same name by Japanese author Kaneshiro Kazuki ('GO!').
- There is a korean movie adaptation of this book with the same name that was released in 2006.