Seventeen-year-old Lin Yu is a quiet high school student. An unexpected collision led him to meet Shen Qingyan, a sophomore in high school. From then on, picking up books under the parasol tree, giving lectures during evening self-study, and accompanying each other on the playground have become the warmest background of youth. This is a story about teenagers encouraging each other and making progress together. The greenery is strong and the future is promising.
