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?
Food production, transport, 
communications, medicine...
Nahrungsmittelproduktion, Transport,
Telekommunikation und Medizin.
Producción de alimentos, transporte,
comunicaciones y medicina…
Producción de alimentos, transporte,
comunicaciones y medicina…
Production alimentaire, transports,
télécommunications, soins médicaux…
Produzione di cibo, trasporti,
 comunicazioni, medicine...
Produção de alimentos, transporte,
comunicações, medicamentos...
производство пищи, транспорт,
средства связи, медицина...