Action, Martial Arts, Adventure.
This is about a young boy who is very skillful and tough, he even classes himself as a ninja.
He eventually get's into a fight to try and save someone and ends up fighting a demon, He soon learns that the bracelet on his right arm which he could never take off was sealing the fact that he could control fire from himself.
As he begins to master his flames, he is confronted with new enemies and new friends and learns things which lead him to discover his half brother, and an epic fight will commence.
A good anime, similar to Yu yu hakasho in animation and some of it's story, plenty of action and battles.