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?
The idea Kazune and I had drastically 
improved IP device performance.
Mit Kazune und meiner Idee haben
sich die IP-Terminals stark verbessert.
La idea de Kazune y mía
mejoró radicalmente el terminal IP.
La idea de Kazune y mía
mejoró radicalmente el terminal IP.
Kazune et moi avons considérablement
optimisé les terminaux IP.
L'idea mia e di Kazune
A ideia que a Kazune e eu sugerimos
Наша с Кадзунэ идея позволила
кардинально переработать IP-терминалы.