The Flame Dragon

Twelve years ago, on the Islands of Alariss, General Vayn gained power after the emperor and empress had "a tragic accident." The Dragon Knights, elite forces loyal to the emperor with the ability to change into dragons, were bound in their human forms and banished. When Vayn's nephew, Quinn, discovers that he's the Crown Prince and true heir, he swears to stand up to his uncle and claim what is rightfully his. Ignus the Flame Dragon has been trapped in human form as a blacksmith in the Floating Mountains. With the help of Thea, a feisty girl with magic skills, Quinn must return Ignus to his true Dragon Knight destiny.