A teenage girl applies for a live-in maid position for a wheelchair-bound man in a remote location. Her mentor has a rare condition that enables her to heal no matter how bad the injury may be. The teen's sexual desires soon arise.
Shota is a high school student who is excited about love. His secret crush is on Hitomi, the best girl in the school. One day at lunchtime, Hitomi calls Shota out to her, and he does as she asks him to do, ending up losing his virginity. Still in disbelief, Shota decides to go to Hitomi's house after school that day. However, what awaits him at Hitomi's house is not a "sweet time for lovers", but a "cruelty-free eating". Hitomi has been infected with a zombie virus that is ravaging the streets of Japan...
Convencidos do resultado final, uma equipe de cientistas viaja no tempo para parar a propagação de um vírus que transforma homens em estupradores zombificados através da sociedade e faz com que eles finalmente descubram a fonte da doença mortal que os faz tentar detê-la antes dela acontece novamente.
Em um mundo pós-apocalíptico devastado, todos os homens se transformaram em demônios de estupro. A única esperança para o futuro é viajar ao passado e prevenir o surto, cuja origem ainda permanece um mistério.
