My Broken Sword Summoned the Golden Dragon

Exiled as a talentless child, Caleb trains in secret for ten years and returns home with a small white dragon. Mocked by his father and arrogant brother Damon—who falsely claims to be the Sanctuary Master's chosen disciple—Caleb enters the dragon rider tournament. When pushed to the brink, Caleb's dragon transforms into a giant Golden Dragon, and he awakens the Dragon God Mark, revealing his true identity and crushing his oppressors.