The genius pharmacist Su Yanli possesses the "Xuanshuang Medicine Vein" and can sense the flow of medicine in the human body. She despised the bad habit of injuring people with poison, and determined to innovate pharmacy based on the principle of "drug metabolism": designing precursor prescriptions for "targeted" activation of lesions, and creating "microcapsule" drug delivery technology for precise delivery. Faced with the evil sect and the obstruction of conservative drug dealers, she used pharmacology to dismantle the conspiracy, regulated medication use ethically, and founded the "Jianghu Drug Alliance" to promote the "Pharmaceutical Ethics Convention". This is a pharmaceutical revolution in the world of medicine that replaces witchcraft formulas with scientific medicine and restrains poisonous techniques with benevolence. Let's see how Su Yanli uses drug metabolism as a blade to carve his own legend and benevolence in the world of medicine.