Female protagonist, a physician known as Tang Dafu. She transmigrated to another life and uses her medical skills to save others. She treated Qin Ruoming with acupuncture at Prince Cheng Manor, saving his life though his lifespan was shortened. She is the mother of Fei An'an and has a complex relationship with Ling Gurong. In her previous life, her son died and Liu Erniang was loyal to her unto death. She charges five thousand taels for the antidote and uses the Jin Yiwei to intimidate Prince Cheng.