Protagonist and mother Chizuru, result of confinement for months how many in the house because of the landslide by the typhoon... The sexual desire rises strangely, a not good sexual relations has been connected.

Though it was possible to go out outside a certain day, the world loses order, "Zonbicchi" it has become world. Zonbicchi doesn't eat the person, so to speak "without the intellect female pervert". It wanders about the town in a erotic appearance, when the man is found, it attacks it, it knocks down and the virus is infected.

Protagonist that goes food procurement is caught many times, it is not infected though it falls down to the pleasure hell why. And Chizuru also, man zombies who surge for the woman's body, it repulses only by the foreplay not to be infected.

Fate of the world and mother and child very!!