In a distant authoritarian nation, the tyrant Bunezu has long oppressed his people with his selfish and arbitrary rule. To crush any opposition, he deployed the Armed Security Organization (GAT), ruthlessly eliminating all dissenters. However, within GAT itself, a warrior secretly questioned the dictatorship and acted to protect the weak. This was Minami, a beautiful scientist working in GAT's Special Science Division. She was the creator of the vicious bio-weapon Dog Tyrant, which, upon encountering Minami, would act like a docile, affectionate puppy. Yet her true identity was that of a female ninja warrior fighting against tyrant Bunezu and supporting the revolution. To prevent the assassination of revolutionary leader Wil, Minami rose to fight. She defeated wave after wave of assassins, but then faced a further mutated, more ferocious Dog Tyrant. The creature no longer recognized Minami. Ultimately, Minami was overpowered by Dog Tyrant, captured by GAT, and subjected to brutal torture. Her hips were dislocated, her genitals tormented while a substance was applied, and her swollen, blood-red pussy was savagely fucked by Dog Tyrant. The female ninja Minami was left utterly broken in both body and mind, her pitiful state striking terror into all who witnessed it.