Medical girl Ruan Nanqiao lives in seclusion in Luo City with her mother, living a peaceful life. Until a sudden assassination, the mother died tragically. In order to find out the truth, she used her medical skills as a guide to rescue Shen Yan, the young leader of the caravan who was attacked, and used his power to enter Beijing. By chance, she rescued the mother of the prime minister who suffered from an old illness and was adopted as a foster daughter. She stepped into the capital where the powerful gathered, but she didn't know that she was entering a carefully woven conspiracy - King Yan Heng's approach had a hidden purpose. Why did General Shen Mu look at her with a familiar look? As the investigation deepens, Beizhao's demise, his grandfather's betrayal, his mother's forbidden relationship with the general, the emperor's secret obsession, and Prince Yan Heng's conspiracy to restore the country came to light one after another. Only then did she realize that the most painful betrayal came from a blood relative...
Purpose: A silver needle saves one person, and a sword helps the world