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?
That way you can go back to 
drawing as soon as you get home.
So kannst du gleich weitermalen,
wenn wir zurück sind.
Así podrás seguir en cuanto volvamos.
Así podrás seguir en cuanto volvamos.
Non, comme ça,
tu pourras continuer en rentrant.
Così quando torniamo
 puoi subito disegnare il resto, no?
Assim, você pode chegar e desenhar
logo que voltar, não acha?
Не надо. Как вернёмся,
сможешь сразу же продолжить.