While struggling to make friends after his parentsÔÇÖ divorce, Koyomi Takasaki meets Kazune Takigawa, but apparently, they already have. Kazune reveals that sheÔÇÖs 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?
