While struggling to make friends after his parents’ divorce, Koyomi Takasaki meets Kazune Takigawa, but apparently, they already have. Kazune reveals that she’s from World Line 85, an alternate universe in which she and Koyomi are lovers. But in a reality where moving between dimensions is natural, could Koyomi be the one from another world?
but as an elementary 
schooler, I didn't get it.
Als Grundschüler war mir nicht klar,
was ihre Bedeutung sein soll.
Yo iba a primaria y no lo entendí.
Yo iba a primaria y no lo entendí.
mais j’étais bien trop jeune
pour comprendre.
ma erano discorsi
 troppo complicati per un bambino.
No fim, foi uma história que uma
criança não era capaz de entender.
Правда, я был младшеклассником
и ничего не понял.