At about the same time as Dr. Maki Amamiya arrives in Amazon City to become the new artificial insemination expert, Kenta, a man from a Christian villiage, is captured while trying to give some castrated barbarians a proper burial. He is taken to Amazon City but instead of being given the usual treatment afforded to men there, he is chosen for the Male Weaponization Program. Given extremely high doses of testosterone, Kenta soon begins to change…

After radical feminism and the emasculation of men have caused the downfall of civilization, the few remaining humans live in various settlements with vast lawless lands in between. One such settlement is Amazon City, where men are seen as a mere food source and as a means to harvest the sperm from their chopped-off testicles. Since heterosexual procreation is now seen as the epitome of perversion, survival of this society relies on artifical insemination. With the previous lead scientist having been assassinated by the terrorists of the Love Liberation Army, Amazon City has recruited the talents of Dr. Maki Amamiya to take her place. Little did they know that Dr. Amamiya would show up in Amazon City with her husband in tow…