Narcotic PX that evokes human destructive urges and attack instincts. The secret society PRIMEX that moonshines it. The whereabouts of Kazama, an executive who was selling PX, is unknown, and there are no end to PX-related incidents. The First Investigation Division of the Drug Control Department caught the information that the owner of a certain sex shop connected with PRIMEX and made a young woman drugged. Investigator Mirei Morishita infiltrates the store as a mistress and investigates, but she is caught and gets overwhelmed by the members of the association!