During the reign of Emperor Gaozong of the Tang Dynasty, Li Zhi (played by Zheng Guolin) succeeded to the throne. Before Wu Zetian (played by Zhang Ting) ascended the throne, a large number of palace maids disappeared in the harem, which was in a struggle for power, and various bizarre and strange events occurred one after another. Soon after Wu Meiniang entered the palace, she gave birth to a daughter and was named Wu Zhaoyi, the only favorite in the harem. Wu immediately began to plan to seize the position of queen and set up a series of traps to frame the queen. Ming Chongyan (played by Ming Dao), a magician who had been childhood sweethearts with the queen, tried to enter the palace to find out the truth, and Helan Xiner (played by Li Xiaolu), the sister of the queen, who was sworn brother, was also involved. In the endless struggle and intrigue, no one is pure and clean, and the step-by-step planning is actually a matter of life and death. This costume palace drama combines suspense and love, showing its dramatic tension. This drama is the sister version of "Beauty's Secret", and many first-line stars have joined, such as Yang Mi, Tong Liya, Wang Likun, etc., which adds a lot of color to the drama.