A bittersweet coming-of-age novel centered on the lives of Lu Lin and Mu Lan. After Lu Lin's mother passes away, a “brother” joins the family. When he later loses sight in his right eye, he disappears and runs away, and Lu Lin becomes determined to find him. Along the way, she reunites with Xu Yifeng and learns that his experiences are similar to hers, and connected to them. Mu Lan reunites with the boy she has a crush on and pursues him, but loses herself in the process and eventually ends her life in despair. The two girls each have their own stories: one is an optimistic girl who helps a boy emerge from the shadows, while the other is carefree but becomes vulnerable because of a boy. Life offers no second chances. After growing through heartbreak, they learn to face life with calm acceptance, and when everything finally settles, they rediscover their reverence for life. Growing up brings both romance and cruelty, and they live out their own stories in the midst of youth.
