Tang Yurou, a rare "born poisonous person" in the Tang Sect for a century, has the ability to know all kinds of strange poisons in the world, but she is unable to cultivate her own internal skills. She is regarded as useless by her family and is packed off to marry Xiao Fengqi Chongxi, the legendary prince of Zhenbei who is about to die soon. The whole capital was waiting to see her transformation from an abandoned daughter of the Tang clan to a newly married widow. Tang Yurou herself is also very Buddhist: Okay, marrying anyone is not a marriage, at least the food in the palace is better than that in the Tangmen's solitary room. On the night of the wedding, the prince coughed violently, and a mouthful of blood spattered on the wound on her wrist. Tang Yurou:? Wait, why do you feel that the meridians that have been blocked all year round feel a little more relaxed? Xiao Fengqi:? Wait, why do I feel that the inner breath that has been tormenting me has calmed down a lot? The two looked at each other and saw the light in each other's eyes - that was the light when medical researchers discovered new experimental materials! From then on, the Chongxi couple, the least favored couple in Beijing, started a vigorous "mutual aid" business behind closed doors. "Husband, today's dose is three qian. Please bear with me." "Madam, according to ancient books, you may be able to add acacia to your medicinal bath. Let's try it?" Under the bed, there was no awakened King of All Poisons. There was only a box covered with dust that they dug out. Inside was the only handbook of the Poison Techniques and the Treatment of Poisons in Southern Xinjiang left by her mother. The so-called "saint" is not a divinely ordained person, but a descendant of the next generation who wants to test the poison with her own body and use blood as a guide to uncover the secret of the origin of medical poison. Tang Yurou looked at the note, then looked at the husband next to her who was willing to be the "medicine guide", and smiled. Go to hell with the Tang Sect's righteous ways,