Original universe but basic story, decent watch

This was interesting. A unique idea of an apocalyptic future. The story as a whole was enjoyable, it had a nice pace and nice characters. It felt like I was watching a movie and I didn't feel the 4h pass. (Really nice to binge watch it) The CGI was the usual for this studio, I also like the way the backgrounds aren't CGI. There will be a movie in the end of the year to finish the story, I hope I like it as much as I liked the anime.