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 ask that you let my love 
act through your feelings.
Bitte vollenden Sie meinen
Wunsch mit Ihren Gefühlen.
Espero que unas tus sentimientos
a los míos.
Espero que unas tus sentimientos
a los míos.
J’ai l’espoir que mes pensées
atteignent votre cœur.
Vorrei che i miei desideri
 facessero breccia nei tuoi sentimenti.
Peço que conecte meu
sentimento pela sua vontade.
Я надеюсь, что мои чувства
вы поддержите своей любовью.