Harumichi Bouya transfers to a Suzuran mid-year, but this isn't just any school, it is know as Crow High where all the delinquent students go to. Bouya just wants to be the number one fighter in school and in doing so he sets off a chain of events of high school gang warfare in the area.

Crows is the prequel of the manga "Worst", and it a story occurring in Suzuran two years before the story of "Worst."