Ururu, a former lawyer, has her beloved husband murdered in retaliation for her role in using the "judicial hand" to send Kuroike-gumi boss Meguro to prison. To clear her name, she becomes a female investigator and vows to seek "revenge." She tracks down the new Kuroike-gumi hideout and begins an undercover investigation alone... However, she is captured by two tough-looking gang members, and her insistent "mouth" and noble "pussy" are violated at the same time. Ururu is drugged and impaled and raped over and over again...