Introduction: Chen Yang, the youngest student in psychology and medicine at Stanford University, pioneered the discipline of diagnostic behavior. Wandering in war and adventure around the world, wandering between hell and heaven. The dignitaries, wealthy businessmen, and politicians are respectful to them; pure school flowers, glamorous royal sisters, and cool white-collar workers surround them; there is also a little demon with a loli-like appearance and a black-hearted demon; I can see through the patient's lies. See through the deception of the body and find the real cause to save your life. I am a bad doctor who can save you your life.