Shen Ruowei, the concubine of the prime minister's palace, had her biological mother poisoned by her aunt, so she was forced to take her place as a maid in the palace. After entering the palace, the eldest sister framed her, the imperial concubine suppressed her, and the queen mother made things difficult for her one after another. Shen Ruowei loses her weakness, defeats the poisonous plot with her wisdom, shocks Xiao Xiao with her courage, and unexpectedly touches the heart of the forbearing emperor Xiao Jin. One seeks revenge, and the other seeks to control and control power. The two go from temptation to falling in love. Shen Ruowei worked step by step in the palace battles, not only avenging her mother, but also gaining the emperor's exclusive favor. She also worked together to calm down the harem turmoil, and wrote a pure love legend in the deep palace where "the concubine is in power and the emperor's heart is alone".