The powerful hybrid black dragon had a deep love for a boy when he was young. He thought he would never see her again after they broke up. Unexpectedly, when the boy grew up, he became a dragon-slaying warrior in order to save his family.
He came all the way from the distant and cold northern land to Dragon Island, where the weather is hot all year round. When he saw the black dragon again, the little boy back then had grown into a strong and brave black dragon boy.