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?
Now I have to save him.
Diesmal muss ich dich retten.
Ahora debo ayudarlo yo.
Ahora debo ayudarle yo.
C’est mon devoir de l’aider !
Questa volta sarò io a salvare lui!
Agora, preciso salvá-lo.
Я должен его спасти.