Kotono Sugiura

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.

Chika Tsuchiya is a female detective in the former accounting department. It's a habit never let go of the calculator & always convert things into money.