The Angel Warrior

From very young and poor to very rich and a warrior, Dawnstar goes through many adventures to save people and cities. But his parrents sign this contract to help Dawnstar when he grows up. Something happens to Dawnstar and he turns to an angel but a bad one at first. Then he twitches and an exsplosion occurs and he turns to a real angel and he is headed to kill a dragon to save the city.