Nan Mingsheng and Ruan Xingzhu were childhood sweethearts and lived in Mengchuan. They had a good relationship. When they were in the third year of junior high school, Nan Mingsheng transferred schools and the two agreed to go to the same high school. After a few years, they never met or contacted each other. In the second year of high school, the male protagonist approached Ruan Xingzhu as a transfer student, but Ruan Xingzhu was alienated as if he didn't know him, which always hurt the male protagonist's heart. The two eventually missed him. They met again many years later, but he had a new life.
Concept: The heartbeat of youth is not worth a long separation. Missing is the normal state of youth. Some promises will eventually be lost to time and separation.