"There is no colorful phoenix flying in the body, but there is a clear understanding in the heart." What is called consonance in ancient times is now called "third consciousness". The story takes place on a university campus. A prank between friends led to the death of Lin Xi'er, the "campus beauty" of Northern College. Subsequently, a series of incredible "supernatural events" occurred on the Northern campus: the "girl combing her hair" in the girls' dormitory at midnight, the sound of piano in the 307 piano room, the sudden death of a boy on the school playground... Through investigation, the police found out about a neurological research institution and learned about the incredible "third consciousness" theory. All the mysteries are about to be revealed...