Murong Yue is the legitimate daughter of the minister of the Ministry of War. Her mother died when she was four years old, and her father had a son a month later. On the big day, she bumped into her stepmother, who was two months pregnant, and beat her three-year-old stepsister. Her father sent her to the village. Ten years later, Murong Yue returned and found her wet nurse, Aunt Zhao, and learned that her mother did not die of illness. In order to find out the death of her mother, she visited the second prince's house at night and broke into the third prince's bedroom while escaping. The third prince Mu Yunshen was poisoned and mute during the princes' fight for the heir, and was pinned down on the bed by Murong Yue, unable to speak. Murong Qing and the second prince Mu Yunyao were married by the emperor, and the Murong family sided with the second prince. Shen Qi'an is Murong Yue's cousin. He won the title of Tan Hua Lang and has always kept in mind his family's instructions to take his cousin Murong Yue back to her maternal home. Murong had heavy menstruation and inquired about it, and learned that her mother was poisoned by her father and stepmother Wang. She cured the third prince's mute poison, helped each other with the third prince, and gave birth to the seeds of love in their daily interactions...
Intent: When a legitimate daughter traces the truth about her mother's death, she heals and grows together with the third prince who was also injured in the royal battle, and finally reveals the truth and restores justice. It tells the story of a weak person who does not give up questioning and action in a desperate situation, uses truth as a blade and love as a shield to regain his own destiny.