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?
is only trying to help you avoid that 
based on his own experiences.
mache ich mir nur Sorgen,
dass das nicht passiert.
así que intento evitar
que te pase lo mismo a ti.
así que intento evitar
que te pase lo mismo a ti.
je préférais te prévenir, pour que
tu ne finisses pas dans cette situation.
mi preoccupo solo che tu
 eviti di prendere quella strada.
Поэтому и переживаю за тебя,
что набедокуришь и будешь жалеть…