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?
So, this mysterious appointment. 
How did it go?
Und? Wie war die Verabredung?
¿Cómo fue la cita que tenías?
¿Cómo ha ido la cita que tenías?
Alors, comment c’était ?
Allora,
E então, como foi a tal promessa?
Ну так что?
Был там кто-нибудь на перекрёстке?