Buyusenki Battle Chronicles (2008)

Mix motorcycles, drugs and yakuza under pressure and the result is bosozoku, the brutal motorized street gangs that terrorize Japan armed with swords and baseball bats. Kyosuke Jinnai was the leader of the "Buyusenki," the largest group of its kind in the Kanto region, but sick of the violence, he planned to give it all up to make a family with his pregnant girlfriend. Instead, all of that was stolen from him in a moment of savage betrayal, and the man who dreamed of a life of peace has instead been transformed into an angel of death!