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?
I like Koyomi. He's a more
 dependable person.
dass der Koyomi, den ich liebe,
el Koyomi que me gusta
es más responsable.
el Koyomi que me gusta
es más responsable.
Le Koyomi que j’aime
est quelqu’un de fiable.
A me piace un Koyomi più affidabile.
O Koyomi que eu gosto é
alguém com quem posso contar.
Коёми, которого я люблю,
гораздо надёжнее тебя.