Chen Mo, a graduate student in modern Chinese medicine, suffered an explosion in his laboratory and woke up on death row in Xianyang, Qin Dynasty. He will be executed in three days. In a desperate situation, he fought for his life with his full medical skills: he identified weeds from the prison wall and used them as medicine, and a bowl of soup saved a sick child; acupuncture in Zhangtai Palace stopped the First Emperor's headache in exchange for a gold medal to avoid death. The Daqin Pharmacopoeia system was quietly activated - each time one person was treated, one side was unlocked, and permissions were opened for each level. Starting from the lowest level as a medicine boy, he used willow bark soup to cure Li Si's stubborn illness, used garlic wine to quell epidemic diseases in the army, used his knowledge to crush a group of alchemists, and defeated those who plotted against him to lose their face again and again. Meng Tian presented him with a sword, Li Si owed his favor, Fu Su became his disciple... On the chessboard in the court, his chess pieces were placed heavier and heavier. However, Xu Fu, the enemy who killed his father, stood in front of him and used the magic of immortality to deceive the First Emperor. The ultimate powerful minister, Zhao Gao, worked step by step to keep an eye on the weak spots. The doctor uses his sword and pen, and the court is the battlefield. From a death row prisoner to an imperial physician, and from an imperial physician to an imperial advisor, Chen Mo used his medical skills to blaze a trail in the most turbulent times, exchanging lives with medicine and changing history with life.