Police officers Muromachi Kyoko and Ichijo Yayoi work for the general affairs and public relations sections while former detective Yasaka Misuzu is now a cafeteria cook. These three women love gossip. They bring what they happen to have heard within the precinct and get animated chatting about various topics at the cafeteria. As they idly gossip about classified investigation information and analyse cases from a completely different perspective from the investigation task force, they start to find unexpected hints that are connected to solving the cases