The legitimate daughter of the Su family, Su Qingyue, was unwilling to marry the rumored cold and bloodthirsty Prince Jing, Xiao Jueyuan, so her legitimate mother designed to push the concubine Su Yunxi into a sedan chair and replace her sister as the concubine. On the wedding night, Xiao Jueyuan saw through her identity at a glance and sarcastically said: "Is a humble concubine worthy of marrying this king for Qingyue?" After that, Su Yunxi became a transparent substitute in the palace. He used her hands to trace Bai Yueguang's eyebrows, and used her body to block deadly hidden arrows, but he didn't even bother to remember her name. But no one expected that this seemingly weak concubine had already developed a strong body through hard work in the house. He dotes on Bai Yueguang, so she watches with cold eyes, secretly accumulating strength; he hurts her life, so she retaliates, making the person who plotted against her pay the price. When Su Qingyue returned, Xiao Jueyuan was filled with joy and wanted to abandon the substitute, but found that he could no longer do without that cold and tough figure - her medical skills could revive human flesh and bones, her strategies could help him put down the rebellion, and he had personally pushed her into hell. "Yunxi, I know that I was wrong. Can you come back?" Su Yunxi held a dagger and cut off the last link between the two of them. She smiled decisively: "My lord, your sincerity is too late. I have to decide my own life!"
