I Became the Devil Who Trained Doctors

"Use the earth as the foundation and the cold wind as the wall..." Su Jinyue, who died on the hospital bed, traveled through time and entered the novel under the pseudonym John Smith. In order to survive, he was determined to create an organization and let them become an extension of his power. However, it was not until his medical apprentices spread all over the world that he realized that he seemed to have gone too far. And every old man who has experienced the Doctors' War will also tell their children: Don't intrude on a doctor's quiet life unless you have power comparable to the devil. But only the demon kings understood that the guy named John was the most difficult guy to deal with among them.