Jiang Che is a resident trainee in the emergency department of Huaihai University Affiliated Hospital, but he can see something his peers cannot: pathological keywords floating above patients' heads. Obstruction, infection, systemic, zoonotic—the system gives him only keywords, never the final answer. When he sees obstruction, is it a myocardial infarction or an intestinal obstruction? When he sees systemic, is it lupus or Behçet's disease? He has to piece everything together himself. From a young woman with a persistent high fever to performing his first operation as the lead surgeon, and the replantation of a severed finger that nobody dares to undertake when the head of orthopedics is absent, he steadily proves himself. From the emergency department to general surgery, the system is merely his ticket through the door. His own abilities are his real trump card. He is not invincible; he is simply good enough. And sometimes, being just good enough is all it takes to save a life.