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?
but perhaps it looked like the two top 
students were pushing each other farther,
aber für die anderen hat es wohl wie exklusives
Lernen der zwei besten Schüler ausgesehen.
pero al ver a los dos mejores del curso
tan aplicados,
pero al ver a los dos mejores del curso
tan aplicados,
Peut-être étaient-ils curieux de voir
les deux meilleurs élèves rivaliser,
ma poi gli altri studenti si incuriosirono
 a veder collaborare i primi due della scuola
e parecia que os dois melhores alunos
das turmas estavam se esforçando juntos.
но остальные ребята посчитали, что мы
неустанно трудимся над собой…