On that night, the court priestess proclaimed a prophecy: "The black dragon will cover the moon, and from the fire a child will be born – salvation for the people of Goguryeo." Thus, in ancient Korea, the beautiful Kymlan was born, whose veins flow with a flame capable of healing wounds. Swearing allegiance to Prince Naun, the girl becomes his personal warrior. Defending the honor of the prince, whom she loves, Kymlan is captured by an enemy tribe, where she meets Munno, the son of the chieftain. He feels that the girl is special. In Munno's heart, a plan for revenge against the Goguryeo people is brewing, for they have doomed his people to a lifetime of tribute. However, Kymlan's selflessness touches the heart of the former enemy. He saves the girl, and she helps him in battles. But the girl’s gift is not only her blessing but also a curse. And if the heavens open, they will destroy the ancient Tree of the lineage, the heart of the empire, and peace in Goguryeo will never come...
