During the Shaoxing period of the Southern Song Dynasty, the undercurrents in the rivers and lakes were turbulent, and the court was in turmoil.
A seemingly ordinary massacre of a master's sect leads to a shocking legend of a secret treasure of the previous dynasty; a dusty ancient sword "Chengying" opens up a chess game of power that has been dormant for hundreds of years.
**Shen Guhong**, the successor of the Qingping Sword, has stepped into a lot of fog to trace the death of his master Gu Yunshan; **Xie Qingyan**, the resourceful son of a family, is a close friend and a moral character in his heart, so he joins the game; **Su Nianxue**, a medical girl from Huichun Hall whose life experience is a mystery, has become the key to the competition between all parties due to the star stone and mysterious bloodline inherited from her family.
The fate of the three people was intertwined, and they were forced to be involved in a huge whirlpool that swept across the political and political circles. The secret agents of the Jin Kingdom, the dead soldiers of the Prime Minister of Qin, the "Qianlong Guards" inherited from the previous dynasty, the mysterious organization "Qingyuanhui"... The four forces are fighting openly and secretly, with the goal of directing the fate of the Song Dynasty.
From the assassination in Tianshui Lane, Lin'an, to the treasure house of the former dynasty under Feilai Peak; from stealing tokens at night in the Prime Minister's Mansion, to outsmarting the enemy's nest in the West City. Step by step, they moved forward amidst the flash of swords and machinations, and gradually uncovered the shocking conspiracy behind the death of their master to collaborate with the enemy and betray the country, shaking the country's foundation.
Holding ironclad evidence that can detonate the government and the opposition, and being at the center of the storm, how can the three of them survive this chess game that concerns the fate of their family and country? Can the sharp edge of the Shadow Sword cut through the darkness shrouding Jiangnan?
This is an adventure about revenge, protection and choice. It is also a generous elegiac song in which a knight defends his home and country with his blood and wisdom when the country is in crisis.
