In Dayin of Dongzhou, the emperor's uncle Xiao Jingheng was regent. There was an undercurrent in the court, and the Immortal Sect was involved in politics. The way of heaven retreated, the spiritual energy declined, the Five Mountains Immortal Sect monopolized the practice, and the royal family declined. He didn't believe in immortality, but he met Qin Wuyue, a woman who looked like a cold moon, while watching the stars on a rainy night. She comes from the Xuanmu Palace in the northwest. Her heart is like an ice mirror, and she has been planning for hundreds of years, hoping to overturn the way of heaven with the way of humanity. The dragon's veins were eroded, the border was in crisis, the betrothal gift was in turmoil, and the wedding broke up in public. Conspiracies are uncovered layer by layer, the sacrifice platform appears, and the battle for destiny intensifies. He holds the sword to protect the people, and she plays chess and enters the game, going from opponent to life and death together. In the end, fire ignites the sky, the laws are reestablished, and practice returns to the virtuous. When the new world opens, she turns into light and disappears, leaving only a brief note filled with salvation for the world.