The story begins with a small-town girl, Huan'er Chen, moving to a big city with her parents. She and her two new friends, Qichi Jing and Cong Song, have been together since high school. From college to graduation, they go through all the important nodes in life together. During this period, there are ordinary and trivial days such as reading, outings, sports games, and book rafting. There were also the sourness of secret love, the unwillingness to die prematurely, the unpreparedness to face family changes, and the confusion and pain of facing the death of a loved one for the first time. These three youths support each other through the pain of growing up, growing from ignorant teenagers to adults who have integrated into this society.—163.com