Nihonbashi Police Station (3512b3dc)

Nihonbashi Police Station is a local police institution whose clearest directly depicted activity is a kendo lesson for elementary school children. The scene places the station not only within the formal world of policing but also among the neighborhood institutions that bring officers and residents into contact.

Community Kendo Lesson

After visiting Hamacho Park, Tokiko Kanamori went into its sports center and asked a group of children carrying bamboo swords and wearing kendo protective gear about their activity. They told her that the Nihonbashi Police Station kendo lesson had just ended and had been held in the basement. Tokiko followed their directions downstairs, where children stood near the entrance to a traditional dojo and a small group of adults and children remained inside.

The account presents the class through Tokiko’s search for it, rather than through an officer leading the session. Its setting in the sports center’s basement gives the police station a visible community-facing function: its name is attached to a children’s activity that brings the station into neighborhood life beyond the investigation room.

Place in the Story

The kendo lesson connects the station to Tokiko’s visit and to the book’s recurring martial-arts motif. Matsumiya later describes practicing with a bamboo kendo sword while discussing exercise with Tokiko, and she asks him to pass along his greetings to Kaga. These details establish kendo as part of the characters’ ordinary social world, though the evidence does not say that Kaga or Matsumiya taught or attended this particular class.

The station’s documented significance here is therefore specific rather than institutional in a wider sense: it sponsors or lends its name to a local lesson, and that lesson becomes the setting Tokiko seeks out. The available account does not identify the class’s instructors, its schedule, or the station’s organization, and does not show it directing the main murder inquiry.