I enjoyed this episode a bit more than the previous one. So far, everything surrounding the sister is a bit confusing, but in a good mystery sort of way. We all knew that Schwar-chan was not going to be staying with them, but I kind of find myself wishing that his story wasn’t wrapped up in just a single episode. I feel like a more gradual unfolding over a couple episode could have been powerful, especially as a way for Youko to find out more about the pre-apocalypse and maybe even having Airi relating to him on some level. That said, I like the way they handled it for a single episode story; how not every single thing was spelled out for us and the melancholic ending.