You are my lark, and I am your good bird. "The sound of the pine trees in the middle of the night is as urgent as the rain" is the life of ordinary people in an era. They are simple, thick and cute. But he is living a different and wonderful life. The common lives of these people reflect the uniqueness of an era. This book fully reflects the simple life of that era through the changes in love and hatred of Hu Chunming, Hu Chunmin, Zhou Xiaojuan, Ai Manman, Yu Nier, and Gu Xiangyu.