The art is good and the concept is there but it feels like there could have been a lot more to it. There was definitely some elements that could have been expanded upon and it jumped around a bit so the story didn't really flow very well. It had potential and you can tell the author had a good initial idea. I just think they got a little lost in trying to portray it.
Shingeki No Kyojin Dj - Kodomo No Jikan.