Reinya seems like a typical girl working at a convenience shop, yet she secretly operates as the Phantom Thief Reinya. Alongside her aide Chūtarō, they hide beneath the store and plot to pilfer jeweled gold treasures. Their adversaries are an inept trio: a lewd police inspector, a clueless female officer, and a detective hopelessly enamored with Reinya. All of them operate out of the police station adjacent to Reinya's shop and city stays safe in the bustling city, everywhere nightly again.
