A 17-year-old middle school student has repeatedly caused vicious incidents, causing strong repercussions and condemnation in society. The campus life that I had originally longed for was cast an indelible shadow by the malicious ridicule of my classmates. Curious behavioral psychologists tried to explore the mind of this mentally abnormal boy, but what they saw was an ordinary boy surrounded by peace and tranquility, whose behavior was no different from ordinary people. What happened to him? How did the young man's heart break down step by step?