There were four dynasties throughout the land. It was peaceful. Until the West planned to invade the remaining five dynasties beginning with the Jin Empire ruled by the Wu family. The two kingdoms from the North and South planned to have an alliance through the marriage of the Jin Dynasty Emperor's son, Yifan, and the Song Dynasty Emperor's son, who was mistaken to be a girl in the first place, Junmyeon. The two embarked on a great battle of kingdom versus kingdom, freedom, power and the one thing they can't let go....love.