Yun Fuling, the legitimate daughter of the Duke of Zhenguo, was framed as a treason by her concubine Yun Wanrong in her previous life. Her infant son, who was just one month old, was given poisoned wine and she was beaten to death with a stick. When she was reborn on the night of childbirth, she relied on the skills she learned in her previous life. Poison doctor's secret skill, she discovered in time that the lactation soup was chronically poisoned, saved her son and secretly exchanged it, hiding it from everyone; she remained weak on the surface, but in fact tortured her concubine and accomplices with poison, and at the same time began to collect former children. Evidence of the crime of a world enemy revealed that the prince had an affair with his concubine, and that the prince coveted the military power of the government; she used poison to control the servants in the palace, cultivate confidants, and used her medical skills to treat an old woman next door, and unexpectedly obtained a lost secret The fragments of "The Book of Hundred Poisons"; at the same time, the hostage Yan Beihan (male protagonist) living in the mansion saw through her disguise, and the two reached a deal: he helped her find medicine to save her son, and she helped him regain the throne of Beiyan; first 2 In Chapter 0, Yun Fuling successfully averted the concubine's three poisonings and caused her to miscarry. However, the concubine's sister turned to the prince and bit her back. Yun Fuling used fetal poison to prove the case, cleared her suspicion, and exposed the relationship between the prince and her concubine. Guang, the prince was reprimanded by the emperor and temporarily lost power; the child's condition was temporarily stable, but he still needed to use "Red Flame Ganoderma"; Yan Beihan excused himself from the palace and went to the north to find medicine; Yun Fuling began to prepare for the Queen Mother's entry into the palace. Preparations were made for the birthday banquet, which would be the key stage for the next struggle; later she brought her son into the palace, shocked the harem with poisonous techniques, and was appreciated by the queen mother, but attracted even more crazy revenge from the prince; she and Yan Beihan went to southern Xinjiang to find the way to cure the poisonous poison. After experiencing life and death, their relationship was firm, and they were inherited by the Poison Saint; after returning to Beijing, the prince initiated a palace coup, and Yun Fuling used a poison array to rescue him and crush the conspiracy, but found out that there was another mastermind behind the scenes;
