This book uses delicate writing to describe the budding emotions, sensitive and complex friendships of teenagers. At the same time, through the "magical story" of a gifted student and an autistic child exchanging souls, it shows the process of the two of them going from being hostile to each other to understanding and understanding each other, and then supporting each other and forming a deep friendship, which is touching. At the same time, it also allows readers to understand the psychology and growth process of autistic children.