Li Xiaolu, 16, meets the bookish student of the class, Wang Xiaobing. They become best friends. During their short period of friendship, they read Sanmao, and discover the most beautiful places in Baocheng - the orchard and the riverbank. However, over time they become less close. Serious differences lead to their separation. In the summer holidays after the college entrance exams are over, Xiaobing comes to see Xiaolu for the last time. As memorable as their first encounter, the friends who have not met for two years reconcile on this day.