You Take My Crown, I Ruin Your Empire

Dragon knight Edward returns from ten years guarding the North, only to be jilted by Empress Selena and her lover Duke Delacroix, stripped of his dragon command and sword, and cast out. Quietly, he lifts the dragon Titan's ten seals and recalls his knights. He alone can tame Titan, and he is the Dragon Lord the Dragon Sage sought for three years. As Delacroix's treason unravels, Edward exposes him, burns him, dethrones Selena, severs their soul bond, and flies off as king.