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?
and researchers in imaginary science or 
similar fields are doing the testing.
Das testen doch die
Imaginärelementwissenschaftler und so?
Lo prueban los científicos
y sus familiares.
Lo prueban los científicos
y sus familiares.
et étudié par des chercheurs
du domaine des sciences spéculatives.
e al momento ne stanno monitorando l'attività
e os pesquisadores da
Ciência do Elemento Imaginário
Сейчас его тестируют…
мнимологи и их близкие.