A hard-boiled mystery set in Yokohama. The woman who fell to her death from Hotel Nyao (Toriso) overlooking Yokohama Port was Canary, an undercover operative of the CIA who had been assigned to the terrorist organization ! Why did she die? What is the connection with the terrorist plan that is being planned for the first time in 12 years? In order to pursue the truth behind Canary s death and prevent terrorism, two CIA operatives and two public security police officers begin an investigation. Mother Mystery where each player takes charge of each character in the story and aims to unravel the truth. Please enjoy the story created by the detailed worldview and hard-boiled drama.

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