Very underrated anime, the concept behind it is very overlooked by many and the story is actually quite emotional and tear jerking in my opinion. I highly disagree with the low rating this anime overall has. The story is really unique in its own way and doesnt really feel like it is comparable to something other i have seen. The art style is really well done and gives a certain dystopian/realistic feeling to it together with emptiness and also a really interresting emotion that folds with the way the story goes. I think again this anime is wrongly hated and looked down on because ofsome expectations some viewers may have had.