Leo Carter, Dragon Slayer, Sacred Master of Celestial Gate. Carter family massacred, he pretended to be a powerless nobody, married into Long family. Fiancée Wanda Long protects him. Uses Celestial Gate resources to protect Long family, search for medicine for poisoned godmother Susan Young. Befriends Serena Jacobs, Jade Sinclair; exposes plots, crushes evil. Yates family is massacre culprit; he kills them. Kunlun Imperial Clan emerges, besieges masters. Leo faces new battle.