A very good manga, different from many other shounen. It's an investigative manga, serious, with a lot of text but nothing boring, repetitive, or unimportant, everything is important and a key piece of the plot. The protagonist here is the 'villain'. It deals with philosophical and existential themes with supernatural references. It has a well-proportioned beginning, middle, and end. I liked the ending (it happened what I was hoping for).

The complete scanlation is available for download.

And it has good fanservice too, especially MisaMisa-chan.