Iya na Kao sare nagara Kozukuri sasete Moraitai

The protagonist Akito Kishizaki leaves his hometown located near a mountain where he is the only young person to look for his ideal woman. When he reaches a metropolis, he is abducted and informed that a virus has been spreading throughout the world and making all men impotent, but Akito has an antibody that neutralizes the virus. After some...