The book tells the story that Zhang Yashui came to a conclusion from his short first half of life: he was really "backward", and meeting Li Lan was a match for him in terms of luck. After all, the two had similar interests and had no friends, so they just played together. The author didn't know what the outcome would be like in the end.
The timeline begins in high school and ends before the protagonist dies of old age.
Strong. There are sand sculptures, cookies. Will it be torture? It depends on the author's mood.
Purpose: Find something worthwhile in a boring life