My Royal Guard Is Secretly a Dragon Knight!

Kael, a knight raised from childhood at Dragon's Cliff, sets out for Ironwood Hold carrying a token marked with a dragon pattern in search of answers about where he came from. He rescues Evelyn, the duke's daughter, from assassins and takes on the job of guarding her. Relying on his dragon-given power, he brings down the greedy Blackwood father and son and tames the barbarian tribes that threaten the domain. Yet a larger threat is emerging: the foreign realm of Ross demands a marriage under the cover of an alliance and challenges him to a trial by combat, and Kael must answer with his Dragon-Flame Holy Sword.