Character development: The character development is very different than any other anime I've seen. It's obvious that certain characters have history together, but you don't really see that history. Unlike most short anime, there aren't too many flashbacks to create history. Because you aren't exactly sure what happened, It feels more realistic. There are characters that get flashbacks, but it still doesn't cover the whole history.
Art&Sound: The way the art was done was very unique and beautiful, when you combine the art, amazing soundtrack, fantasy aspects, advanced technology, and realistic characters, you get a very surreal feeling that works perfectly with the unique storyline.
K is very easy to enjoy and appeals to a lot of different tastes. It's a kind of ageless story that I think absolutely anyone over 10 or 11 will enjoy.
