Lingtian Palace in the martial arts world is both good and evil. It is powerful but has been secluded for a long time. Ten years ago, the young palace master Ling Xuan (played by Hu Yiyao) went out to travel and met a pair of dying siblings. In exchange for saving her sister, she made a ten-year agreement with the young man to take him to the Shadow Pavilion of Lingtian Palace for training. If he can survive and become a master in ten years, he will come to help her. After fighting and surviving many deaths, the young man walked out of the Shadow Pavilion alive under the name of Ying Shi (played by Lin Zehui). However, at this time, Lingtian Palace was in danger. In order to seize the Wanxin Jue technique of Lingxuan's mother, the old palace master did not hesitate to cause chaos in the martial arts world and even turned against his own daughter. Lingxuan had to pretend to be a dissolute waste with a perverse personality and ruthless means to protect himself, and wait for an opportunity to plan a counterattack. At this time, Ying Shi came to Lingxuan on the mission of Ying Pavilion to find Wanxin Jue. From suspicion to testing, the two went through many crises and finally became confidants who delivered their backs. But just as they fell in love with each other, Lingxuan discovered Yingshi's unspeakable life secret...