Under the glory of the prosperous age of Kaiyuan, there are hidden treacherous worlds and undercurrents in the court. Han Yitao, a young man with a mysterious life experience, encounters Peng Sha, a chivalrous heroine with a blood feud, in a water town in the south of the Yangtze River. The two become connected through a lost martial arts secret book "Xuan Yuan Xin Fa", and they are involved in a shocking conspiracy that spans the rivers, lakes and courts. From the misty south of the Yangtze River to the palace of Chang'an, from the desert of Saibei to the dangerous peaks of Shu, they use swords as matchmakers and hearts as contracts to solve the mystery of their lives in the light of swords and shadows, and stick to their chivalrous hearts in the whirlpool of power. When the war of the Anshi Rebellion burns across the mountains and rivers, and the grievances and grievances of the past are intertwined with the righteousness of the family and the country, this pair of Jianghu children will write a legendary epic about chivalry, love and redemption in the historical torrent of the Tang Dynasty from prosperity to decline.
