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?
For you to be living 
your life solely for me...
Dass du nur dafür lebst,
Se vai viver apenas para fazer
isso por mim, eu não quero.