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?
The world's governments transferred power to 
an international union governed by women,
Die Regierungen aller Länder gründeten
einen Völkerbund bestehend aus Frauen,
Una unión internacional femenina
asumió el poder de todos los Gobiernos.
Una unión internacional femenina
asumió el poder de todos los Gobiernos.
Les États rescapés confièrent le pouvoir
à une ligue de femmes,
I governi del mondo hanno trasferito il potere
a un'unione internazionale presieduta da donne
Os governos mundiais transferiram o poder para
uma união internacional governada por mulheres,
Мировые правительства передали
полномочия международному союзу женщин.