Lin Ran, an intern, unexpectedly unlocks a Divine Doctor System and masters the complete art of traditional Chinese medicine diagnosis and treatment. Instead of working as a doctor in a hospital, he travels around the streets setting up a medical stall. With affordable consultation fees and specially formulated secret medicines, he treats all kinds of difficult and serious illnesses. He goes on to save a stroke-stricken elderly man, a celebrity who has lost her voice, a veteran suffering from organ failure, a firefighter with severe burns, and a liver cancer patient, while exposing the schemes of various villains and remaining true to his principles as a healer. Along the way, he meets many kind-hearted ordinary people and resolves numerous conflicts through his medical skills. Refusing to be swept up in the pursuit of fame and fortune, he helps people through medicine while unlocking system rewards, earning luxury cars and a mansion, and embracing a completely new life of freedom and authenticity.