This is a great manga, because of it's balance between typical shoujo elements (romance, chibi moments...) and mystery.

The manga has a episodic format, so if you prefer one smooth story line than this might not be for you. However, each of the story arcs, which is usually covered by several chapters, is very well put together and thought out. The mystery element is strong, where as the horror element is not. Horror can easily make me squeamish, but there's nothing bone chilling in here. There is some blood and random popping up of ghosts (but that is to be expected from the title I think). Each arc is basically a team of different kinds of 'ghost hunters' trying to solve some sort of ghost related problem and figure out why weird events are taking place.

The art isn't amazing, but it is somewhat likable, and does not in anyway hinder the story. (Expect large shoujo eyes and pretty looking characters).

The characters are very likable, though most of them do lack some depth. Details about these characters seem to be drawn rather reluctantly from the author, but that could just be because it is a work in progress, or because it is in the mystery genre...The protagonists are a high school girl (whose point of view we see the story from), and a young paranormal researcher who has a lot of fancy equipment, his own research center and is very self-centered. Other characters include and an atypical monk and a miko, a young priest, a spiritual medium, and a mysterious assistant.