Xu Li and Li Jihuai grew up together in Beihai Town and are each other's closest childhood sweethearts. However, as the family moved, the two lost contact until they unexpectedly reunited at South Bay Middle School in high school.
At that time, Xu Li was lively and cheerful, loved writing, and was a potential new star in the literary club; while Li Jihuai was sunny and gentle, and was the perfect senior in everyone's eyes. The two each made like-minded friends.
As they get along day and night, Xu Li and Li Jihuai gradually discover that the ignorant heartbeat when they were young has never disappeared, but is hidden deep in their hearts. However, misunderstandings, pressure to enter higher education and youthful hesitation prevented the two from opening their mouths. Until he returned to Beihai Town after his graduation trip, Xu Li discovered the secret that Li Jihuai had collected for many years among the old things - it turned out that he had been waiting for her.
Purpose: Love is a beacon that illuminates each other, allowing lost people to find their way back.