Just because of their meeting that summer, they spent many summers together...
In 2039, they appeared in each other's lives.
Lin Ziyu, a young man with high hopes, and Zhou Mojia, a girl named "Forever Number One in Grade", gradually develop a secret love for each other...
They encourage each other and go to the morning sun together.
Purpose: The love you have when you are a teenager should be about progressing together with that person, rather than being lost in feelings and giving up on the future that belongs to you.