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've known for a long time.
Das weiß ich längst.
Hace mucho que lo sé.
Hace mucho que lo sé.
Je suis au courant.
Lo sapevo già da tempo.
Eu já sabia há muito tempo.
Да, я знаю.