Essentially the show is about Tatsuma Hiyuu a transfer student who has special powers that he uses to fight against demons and monsters that plague the city. He is joined by four other highschool students who have also developed abnormal powers to help fight monsters.
The plot sounds very much like a lot of other shows out there but it is done in a very different way. the show is very dark in tone and the characters are often reluctant to get involved with the situation. they each also harbour their own dark secrets and often difficult pasts. This gives the show a much more interesting feel than other shows with similar plots. The animation is good for the most part although the fight scenes can be difficult to follow. The show is also let dow by it's second season which just doesn't live up to the first.