This was a perfect read during Halloween night. I've wanted to read this series for many many years but always waited until I'd get to the recommended age range to read it. The wait was totally worth it.
Wonderful graphics, engaging, energetic story line, and a blend of some fantasy elements with an intense cyberpunk-mafia atmosphere, this was awesome. And the title and idea of the dog in the spine is by far one of the most original things I've come across in an action manga. Totally loved it, and can't wait to see what happens next.