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?
was the sole way to save 
the ghost of the intersection.
den Geist auf der Kreuzung zu retten.
c’était son seul moyen de sauver
le fantôme du carrefour.
per salvare il fantasma dell'incrocio pedonale.
para salvar o fantasma do cruzamento.
он не смог бы спасти
привидение с перекрёстка.