Murong Yue is the legitimate daughter of the Minister of War. Her mother dies when she is four, and her father remarries a month later. On the wedding day, she bumps into her pregnant stepmother, who is two months along, and hits her three-year-old stepsister. Her father sends her away to a country estate. Ten years later, Murong Yue returns and finds her wet nurse, Nanny Zhao, who tells her that her mother did not die of illness. To uncover the truth about her mother's death, she sneaks into the Second Prince's residence at night. While fleeing, she barges into the Third Prince's bedroom. Mu Yunshen, the Third Prince, was poisoned and rendered mute during the princes' struggle for the throne, and Murong Yue pins him down on the bed before he can make a sound. Murong Qing is betrothed to the Second Prince, Mu Yunyao, by imperial decree, and the Murong family has sided with him. Shen Qi'an is Murong Yue's cousin. He placed first in the palace examination and has always remembered his family's instructions to bring his cousin Murong Yue back to her maternal relatives. After making many inquiries, Murong Yue learns that her father and stepmother, Madam Wang, poisoned her mother to death. She cures the Third Prince's poison-induced muteness, and the two help each other. As they spend time together, the seeds of love begin to grow...
Theme: While investigating the truth behind her mother's death, a legitimate daughter finds mutual healing and grows alongside the Third Prince, who has also been hurt by the royal struggle. Together, they ultimately uncover the truth and restore justice. This is a story about the weak refusing to stop asking questions and taking action, even when trapped in dire circumstances, using truth as a blade and love as a shield to reclaim the fate that belongs to them.