Reiko is a female detective who loves justice. A specialist in dealing with male criminals, she uses her extraordinary sexual restraint techniques to subjugate men who have committed crimes. She holds them in a headlock and gives them a footjob from behind, restrains them and forces them to sit on her face, and interrogates them with a splash of male squirting juices... Once they are caught, even the last man they encounter will be unable to resist her pleasure and will end up in custody. Reiko believes that this job of judging evil and dominating men with pleasure is her calling. And today, a new investigation order is given to her.