After, Shogo Ogami’s death in Hiroshima, Detective Shuichi Hioka successfully implemented Shogo Ogami’s plan, which was to control the yakuza to prevent further gang wars and save innocent people from getting harmed. Shuichi Hioka manages the criminal organizations, but, due to one evil person who gets released from prison, the situation drastically changes.

On the eighth anniversary of a cult's failed chemical attack on Tokyo and their subsequent mass suicide, family members of those affected gather at the cult's former base on the shores of a lake to observe the anniversary of their loved ones' deaths.