I really enjoyed the storytelling of the story. With the story using two main characters each with their own purpose and style of telling the overall story. One is the conscience and provides the moral of the story while the other provides the action and sense of relief. So when the characters swapped their styles it was enthralling and exciting.
The story itself is great. it provides a mystery to keep you entertained while subverting your expectations. It's simple but complex enough to make it entertaining.
For an anime about a blind guy, the art is pretty good. Even when we see through his perspective its quite good and is used really creatively.
