Bokuto Precinct typically handles minor crimes such as reckless driving. Officers Yoriko Nikaido and Futaba Aoi stumble upon a cache of stolen firearms in a car, coinciding with a series of unusual traffic control malfunctions in Tokyo. The investigation is led by Kobayakawa Miyuki and Tsujimoto Natsumi, who must use their skills to uncover the cause of these events and prevent a potential disaster.