Asami, the only female investigator, infiltrates a brothel where dangerous pleasure drugs are being made. Her method is to work as a prostitute at a fashion health club in the building. Burning with a sense of justice and mission, Asami tries her best to perform unfamiliar acts while extracting information from customers. Meanwhile, an organization that saw through the lies on Asami's resume begins to investigate her background. One day, a regular customer who hints at information on her affairs asks Asami for an extra act...