Kyoko Muromachi (Reiko Takashima), Yayoi Ichijo (Yoshiko Miyazaki) and Misuzu Yasaka (Atsuko Takahata) work at a police station. Kyoko Muromachi works in the general affairs section, Yayoi Ichijo in public relations section and Misuzu Yasaka in the cafeteria as a cook. Even though they are not detectives, they obtain information about cases and gather at the police station cafeteria to analyze the information. They actually find tips that can solve cases.
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