The boss of the Maguro group is dead, poisoned by an assassin hired by the ambitious and vicious Sunagawa. But there's another agenda operating in these dark waters. Yamaoka, a dangerous and fearless officer from the organization of killers that raised Akira, is planning a feeding frenzy to flood Taihei with blood. Predators are closing in on the Sato siblings--who are still supposed to be "on vacation!"--from all sides. But this crisis might become an opportunity Yoko never thought she would see, to exact revenge with her life on the line...