In order to save his brother Shen Qingci, who was demoted to the border guard, Shen Zhiwan was forced to enter the palace to serve the emperor Xiao Yan. However, every time after going to bed, his brother was demoted to a more remote and wild place. When she was desperate, she discovered that she was pregnant and tried to escape, but was captured and brought back to the palace. After experiencing turmoil such as poisoning and fighting for favor, Shen Zhiwan gradually discovered that Xiao Yan's ruthlessness was actually a plan to protect the Shen family - he secretly transferred Shen Qingci to take charge of the army in southern Xinjiang, and used Shen Zhiwan as a bait to disrupt the power of the powerful Liu family. In the end, the emperor and his ministers worked together to eradicate the traitors, and the Shen family's injustice was avenged. Shen Zhiwan grew from a chess piece to an imperial concubine, and guarded the country with Xiao Yan.