In the last years of the Zhou Dynasty, the court was corrupt and the world was in turmoil. War breaks out frequently on the northern border, but undercurrents are surging in the south, and a conspiracy surrounding the former dynasty's secret treasure is brewing. Li Ran, a female swordsman with a humble background but extraordinary talent, was accidentally involved in the whirlpool of intrigues and feuds. Her choice will affect the fate of the entire dynasty. As Li Ran investigated the death of his master, he accidentally obtained half of the "Shanhe Order" - the legendary key that can unlock the secret treasure of the previous dynasty. The court and various forces in the world took action upon hearing the news, and she gradually discovered that her life experience was closely connected with this dispute. Xiao Yunlan was ordered to seize the Shanhe Order, but his position wavered during the confrontation with her. At the same time, Xue Wulei secretly planned to use the power of the secret treasure to overthrow the dynasty. In order to find out the truth, Li Ran went to "Tingyu Tower" alone in the south of the Yangtze River, and was surrounded and suppressed by masters of the Jianghu. Xiao Yunlan came to help, and the two were forced to join forces, but they gradually fell in love during the cooperation. However, when Li Ran discovered Xiao Yunlan's true identity, trust instantly collapsed. Xue Wulei took the opportunity to show up, revealing that she was an orphan of the former royal family, and induced her to start a bloody storm in the name of revenge. Faced with a painful decision: follow the mission of your bloodline, or stick to your heart?
When the secret treasure of the imperial mausoleum was opened, Li Ran and Xiao Yunlan faced each other with swords. At the critical moment, she cut off the Shanhe Order and shattered Xue Wulei's conspiracy. However, this move also made her a wanted criminal by the court, and there was no place for her in the world. Some people say that they have seen a lone figure walking away through the snow, with a sword as bright as frost; others say that in the smoke outside the wall, there is an additional general in white. The mountains and rivers remain the same, but no one knows whether the legend of Qingshuang Sword is true or false anymore.
