The story follows Muxi and Xuanyue, two cities whose people have been bitter enemies for generations, each trying to swallow up the other. The old lord of Muxi has only one daughter, Ye Zhaonan. He secretly conceals her gender and orders Zhaonan to live as a boy from childhood. Even after inheriting the city lord's title, she continues to present herself as a man. One day, Ye Zhaonan falls off a cliff by accident and, through a twist of fate, meets Liu Xuanming, the lord of Xuanyue. Thus begins a story of extraordinary destiny.
