Seong Han-myeong was the master of his own dojo in Jirisan, Korea. He was especially skilled in martial arts, which gained him great respect across the country. He had one daughter and one son, but his son and wife died of sickness, leaving only Seong Mi-na to continue his lineage. He worried for her every day, and taught her how to take care of herself by teaching her the ways of martial arts, and she had even become more skilled with the guan dao than he ever had. Trained Hwang Seong-gyeong.