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?
Now, take a look in the top 
section of that tall cabinet.
Dann mach doch bitte mal
das Regal da oben auf.
Abre el armario de ahí arriba.
Abre el armario de ahí arriba.
Dis-moi, tu peux débarrasser
le haut de cette armoire ?
Ora apri lo sportello in alto
 di quell'armadio lì.
Depois, abra a parte de cima
daquela prateleira alta.
А теперь открой
верхний ящик вон того шкафа.