Theodore is a pure human being that has been cursed by a painful twist of fate that changed his life. He is innocent man that has been pushed to beyond his limits by betrayal. Driven by revenge, he accepts demonic powers, and joins the demon race, where he fights among their ranks with Misa, the Demon Queen that inspired him to stand with her for his revenge. He eventually abandons the demons and sides with the humans and by doing so he becomes truly worthy of having the magical stone accept him.He has been able to control the magical stone and use it to forge his own path, not one of darkness or light. What are the secrets behind his awakening? And, why is Misa passionately interested in Theodore?