A Tattoo at birth comes with two things: the ability to transform into a magical Knight, and a lifetime of slavery. The only path to freedom is to win the annual tournament. So Gerres has no choice but to join because he wants to spend the rest of his life with the woman he loves, Ellia. Too bad she also joined, and the two are on a collision course. Worse, he is afflicted with uncontrollable rage and fights for control every time he transforms. If he lets go when things go south, he'll rip everyone around him to shreds. But if he doesn't, he'll lose Ellia forever.