世界に男は自分だけ、全世界の女性を妊娠させて人類を救え！～ザーメンキャラバン認定ソフト～

I had a bad cold.... When I wake up, a nurse says to me, "You've been asleep for one year." "What!?" The nurse explains to me that all men except me have died because of some evil virus.... My semen is one and only hope for the continuation of human life now....