There was a bloodbath in Yaowang Valley overnight. The young master of the valley, Shen Shiwei, was hidden in a medicine mortar by his master and escaped with his life. From then on, there was no more stunningly talented and beautiful daughter of the Shen family in the world, only "Shen Shiwei", a cautious young medical officer in the Imperial Hospital who was ignored by everyone. She hid her peerless medical skills and gathered all her sharpness. She would see doctors and prescribe prescriptions during the day, and trace the past at night, working every step of the way, just to find out the truth about the murder that killed her family twenty years ago. She originally thought that the road to revenge would be as long as the endless night, but unexpectedly, an urgent summons from the palace made her diagnose the emperor's body with a strange poison. What made her even more chilly was that the sinister and cruel poisoning method was exactly the same as the enemy who massacred Yaowang Valley back then! On the dragon chair is the Nine-Five Master whose life hangs on a thread. Under the palace, there is a poisonous snake that has been lurking for twenty years and is about to cause another bloody storm. The commander of the Jinyi Guards, who was always smiling but not smiling, frequently cast his probing eyes on her, as if he had smelled the smell of blood: "Doctor Shen, what are your hands shaking for?" Shen Shi lowered his eyes slightly and tightened the golden needle in his sleeve. Should this blade of vengeance hidden in its sheath continue to be patient and wait for the opportunity; or should it be taken out of its sheath and confront this overwhelming power and the shady palace?
