Sarah Marine died giving birth to twin boys, by the seed of the Devil King Satan. Daemon and Samael were the names of the twins, and they were recruited to the E.G.O. through the order's orphanage system. One day, a demon attack wrecked havoc and killed many people, including Samael. From that day on Daemon sworn to become an exorcist and defeat Satan. 7 years later, Daemon has grown into a cool and cocky 15 year old who is more motivated than ever to gain vengeance for his brother . Being mentored by Robert Griffin, who many say is the Strongest Exorcist in the E.G.O., his confidence is soaring. As the destination is set out for God City, the location of the E.G.O. HQ. There are still many obstacles to overcome and lessons to learn. Will the star rise to the occasion or will fall into dark descent?