Marina and Kojiroh have returned! Kojiroh's Scenario- A woman, who introduces herself as the President's Secretary, appeared in Kojiroh's office as a client. The woman's request was to have Kojiroh as her boss's bodyguard, whose life is in danger. Kojiroh took the case and went to meet President Ando... And the daughters Mika and Miki. Kojiroh asks Ando why his life is in danger, but Ando refuses to answer... Kojiroh has been dragged into the problem without knowing the reason. Marina's Scenario- Marina, who has been reinstated with the Cabinet of Investigation, took the case of investigating the successive murders in Japan by Chief Kono's request. As the investigation goes along, Marina finds a sole survivor, who is the daughter of one of the victims, and went to see her. Her name is Yuka. Throughout Marina's investigations, the time to decide to help Yuka or not to will come... All the while serving to protect Yuka...