Crows Zero II

Kurôzu zero II is a movie starring Shun Oguri, Kyôsuke Yabe, and Meisa Kuroki. Tension escalates and violence ensues when a young student unwittingly breaks a non-aggression pact between two rival high schools.
Genji and his victorious G.P.S. alliance find themselves facing down a new challenge by the students of Hosen Academy, feared by everyone as 'The Army of Killers.' The two schools, in fact, have a history of bad blood between them. And the simmering embers of hatred are about to flare up again, burning away any last remnants of the truce they had so rigorously observed until now.