At the age of 13, Yi Han accompanied his friends to catch up with his sophomore high school senior, and met 17-year-old Xia Jin for the first time. Xia Jin's unique tenderness made Chu Yihan throb. Every afternoon after school, they all go back to the book bar to study by themselves. Xia Jin always takes the trouble to teach Chu Yihan to do his homework.
"I don't understand, Xia Jin."
"It's okay, I'll say it again."
Concept: With the arrival of summer, the story of the girl and Xia Jin quietly begins, and their bond makes their summer never end.