This book tells the story of the male protagonist He Jiaxuan who had a car accident in J City ten years ago and went to City A. Due to the car accident, He Jiaxuan lost his memory. Ten years later, He Jiaxuan returned to City J to recover his memory. In the process of recovering his memory, He Jiaxuan I remembered that I was in a car accident while saving the male protagonist Liu Yuexin, and also recalled all the things I had done with Liu Yuexin in J City. I learned that Liu Yuexin had moved away, but Liu Yuexin and He Jiaxuan were in the same middle school and in the same class. Later, Liu Yuexin helped He Jiaxuan recover his memory and start a happy high school life. However, soon after, He Jiaxuan's father's company was on the verge of bankruptcy. He Jiaxuan's mother had to sell his family's villa and rent a house in the community where Liu Yuexin lived.
Concept: expresses longing for the friendship between the two male protagonists