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?
I'll have to have someone 
you can trust persuade you.
Dann muss Sie jemand überzeugen,
dem Sie vertrauen können.
Tendré que hacer que alguien
de confianza lo convenza.
Tendré que hacer que alguien
de confianza lo convenza.
J’ai fait venir quelqu’un
qui pourra vous convaincre.
Lascerò che sia una persona
 di cui si fida a convincerla.
Preciso de alguém em quem
você confia, para persuadi-lo.
Пусть вас уговорит та, кому вы доверяете.