Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Its really pretty good

I love this series. Its really not hard to understand at all. The plot is essentially what others have already said, so I won't go into it. I found the story to be pretty interesting and I can't wait to read more. The art isn't breath-taking or anything, but it isn't bad. The demons are perhaps the best drawn characters in the series thus far. The characters are well written and its easy to like them.