Li Wei once asked Gu Beiliang why the world is not satisfied with a roof over its head and an inch of earth under its feet. Gu Beiliang stopped the scalpel and said word by word: "Not everyone's bones bleed with blood." The forensic room that day was cold and terrifying, and the pale light shone on the bleeding scalpel. At that moment, all living beings were incompetent in the world, but the person in front of him was dressed in white clothes with wind-swept hair, and he was full of courage. Later, Li Huan went to the autopsy table. He was afraid of the dark and even more afraid of death, but he always remembered Gu Beiliang telling him that his heart will never waver from the rock mountain, and there will be a clear breeze and bright moon between his eyebrows. Li Huan is the worst student Gu Beiliang has ever taught, bar none, because she is the only student she has ever taught.