Hiroshi Shinanogawa is a teen who is fond of reading delinquent manga. In his favorite comics, he wants to be a hero like the guys: "Rokudenashi BLUES," "Shounan Bousouzoku," "Crows" and "WORST." He chooses to become a criminal during his last middle school summer. He is leaving his prestigious private school and dropping out as a delinquent to start living. Now he's a gang member who rules Komae Kita Middle School, concealing the fact that he's a delinquent rookie. He stays and fights together with a gang leader Iguchi Tatsuya and a delinquent idolatrous Hiroshi.