Cheng Nan and Wei Jingfeng have lived in the same alley since childhood and are childhood sweethearts. Later, Wei Jingfeng's family moved away. The two met again in college many years later. Cheng Nan went to school from a small city to a big city. Faced with the huge gap between the rich and the poor among his classmates, he became more and more autistic because of some things. His childhood friends seemed to become more and more strange, constantly tempting him step by step into the abyss of losing control...
