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…

Men all over the world except for virgin otaku turn into rape-crazed zombies who kill women with their toxic semen. Some of the surviving otaku get revenge on the three-dimensional women who have shunned them by hunting them down with packs of tamed zombies. The women of Japan must band together to survive the zombie plague before all is lost forever!

政府が行った秘密実験。ガスを使った実験で、このガスを吸うと人肉を食べ、人の生き血を吸うという。実験は失敗に終わり、関わった者はすべて殺された。実験のあった近辺住民にも被害があり、感染者は隔離され殺されていった。被害者である冴島哲郎は人喰の衝動に苦しんでいた。彼は恋人の神影真希と埼玉の山奥でひっそりと暮らし、子供ができたが、数週間で成人してしまう異常な子だった…