Mizuhara Reito is an ordinary boy who wakes up in a world of 5 billion women and 5 men. Now it's up to him to repopulate the human species. Can he stay loyal to his missing childhood friend when all humankind is counting on him to sleep with as many girls as possible?
Well, it basically means it'll 
get better if I get some rest.
Ich brauche nur zu schlafen,
bis ich geheilt bin.
Será lo mismo que dormir hasta sanarme.
Será como dormir hasta estar recuperado.
Il me suffit de dormir pour guérir.
Beh, in pratica me ne starò
un po' a riposo e mi passerà tutto.
Bom, significa que é só
dormir e vou melhorar.
Мне лучше переждать это время так.