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?
What? Are you going on an exchange program?
Äh, was? Gehst du im Ausland studieren?
¿Qué? ¿Te irás a estudiar al extranjero?
¿Qué? ¿Te vas a estudiar al extranjero?
Eh? Perché?
Parteciperai a un programma di scambio?
Hã? Por quê? Vai fazer
um programa de intercâmbio?
Почему? Ты уезжаешь по обмену?