When the little maid Yue'er was thrown into the well, she never expected that her soul would be reborn into the body of the unloved Concubine Jing who had enslaved her for many years. After a series of pretending to be ill to avoid suspicion, she met the emperor many times by chance and she became the most favored woman in the entire royal family. What Yue'er didn't expect was that by accident, the little maid who looked the same as Liu Yue'er accidentally broke the jade that her mother had left for Yue'er. In a rage, Yue'er took off the little maid's pants and was about to spank her little butt. She accidentally discovered that the little maid's butt had a small red mole in the same position as Concubine Jing. Yue'er never expected that the soul of the real Concubine Jing was cast into her young self. At this time, Concubine Jing's body turned out to be the six-year-old appearance of Yue'er when she first entered the palace. Coincidentally, Concubine Jing, who had completely lost her memory, was serving Yue'er with her childhood body. Yue'er threw herself into Concubine Jing and became the most favored member of the royal family. As a result, the two masters and servants who had exchanged identities met again. After knowing that, Yue'er repaid Concubine Jing for her cruel treatment to her bit by bit. This was really unsatisfactory retribution. Yue'er became the queen under Concubine Jing's skin, while Concubine Jing was driven by slavery under Yue'er's skin.