Tokyo

As the capital of Japan, Tokyo is the location of the National Police Agency for all of Japan. Here, the highest bureaucrats and executives of the police make decisions that trickle down to officers at stations within the different prefectures (into which the nation-state is divided).

Prefectural HQ, Prefecture D

All of the novel's action takes place within Prefecture D, and the Prefectural HQ is the primary place of action within this area. The Prefectural HQ is the police station at which Mikami works. Inside, the press convene regularly to gather intel on police cases. Though this is a single station, its officers are divided up inside into many different divisions. Doors and lips are tightly sealed around the office.

Genbu City, Prefecture D

Genbu City is the city from where Kasumi Mesaki disappeared. Here, her father, Masato Mesaki, owns a sports store.

The city's population is at...