Porter Robinson & Madeon - Shelter. Rin, a 17-year-old girl. Every day she wakes up in the same world, doing the same things over and over. Until one day, everything changes, and Rin comes to learn the true origins behind her life inside a simulation... little did she know that after learning about her past, her future was going to change forever.

Various crossovers with SAO that never became anything more than beginnings.