At the call of the Iruma Gun Rabbit, Sakuma Aoki and Mason Tokushima gather at the office of the Yakuza "Fire Warbler" in Yokohama. According to Gun Rabbit, there is a casino of the flight pursuit group that is hostile to the Shima of the fire group that Sakumaki divides, and drug trading is done there. Gun rabbits aiming for career advancement ask for cooperation from the two in order to monopolize the credit for crushing the transaction. Sakuma, who wants to crush the flight pursuit group, and Riyu, who cannot overlook the insecurity as a soldier, decides to help the gun rabbit.