Ao No Exorcist is the story of Rin Okumura, one of two twins born from a human mother and Satan as a father. Rin is a trouble maker and not particularly good at anything. However he has the urge to protect his brother and prove himself, all the while he is quite self loathing. The two brother's mother died during child birth and they were taken in by a priest. He raised them as his own children and taught them the best he could. One day Rin discovers that he is the son of Satan and loses control. The priest, being a the highest class of exorcist a Paladin, is the only one capable of withstanding being possesed by Satan and ends up losing his life as a result. Rin then swears an oath to kill his father Satan and become a Paladin himself. He joins True Cross academy and begins learning what it means to become an exorcist. Rin battle both demon and humans who want to see the son of Satan die. I find this anime very interesting and like the fact that someone took a different approach to the theological genre of anime. It is good for both entertainment and a storyline to follow.