Ten years later, Thor was just a registered scout in a border town with a monthly salary of two silver coins, until he killed the first monster - the black mist was sucked into his chest, a hungry roar came from his chest, and a line of gold appeared at the bottom of his pupils. He can swallow the black mist and become stronger the more he kills, but the price is that every time he is near death, the dragon nature is devouring his humanity. From the knight's dream of saving a gold coin to the son of the Dragon God who came to court with thousands of dragons, his fate was written in the ancient dragon language on the half of the white dragon scale on his chest: "The black mist is your food and your graveyard."