As Shouta adapts to his new life in the all-girls school, he starts to wonder why everyone is so eager to be friendly with him...
So... almost all the men in the world 
have died except for a few in cold sleep.
Darum …
Por eso,
Por eso,
Je crois donc
à la disparition des hommes
Perciò...
Então... quase todos os homens do mundo
morreram, exceto alguns em sono frio.
Итак, почти все мужчины погибли.
Кроме тех немногих в гибернации.