No spoilers. This anime was fairly enjoyable. There's really not much to say about it because I found it quite mediocre, but the core concept behind the series is very cool in my opinion. I probably would have given it a 5 if I didn't find the basic concept so neat. They could have done a whole lot with it, but really the show was just sort of, well, there. It wasn't bad, but none of the characters were overly endearing and the plot wasn't very deep. Just a sort of average anime. Not bad at all, none of thecharacters grated on my nerves or anything, but not spectacular in any way.