Reiko is a female investigator who loves justice. A specialist in dealing with male criminals, she uses her extraordinary sexual capture 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 while splashing male squirts... If they are caught, the last man will not be able to resist her pleasure, and he will end up under arrest. Reiko believes that this job of judging evil and dominating men with pleasure is her calling. Today, a new investigation order is given to her.