The two girls began to have a crush on each other. Later, they found out that the other also liked them. They were sweet in school. Later, after the winter vacation, they both transferred to each other's schools. Because they didn't see each other often, Gu Jiaxin broke up. Chang Jingchi couldn't leave, waiting for her to look back every day. She looked for Gu Jiaxin many times, but the other girl didn't respond.
Later, an accidental picnic made them meet again. They started all over again, but their love was not beautiful after all.
Gu Jiaxin became stable as an adult. Chang Jingchi was Gu Jiaxin's first love. Since breaking up with Chang Jingchi, Gu Jiaxin has not been in love again. Chang Jingchi has been pursuing his own freedom since he became an adult.
No one knew what was in Chang Jingchi's black bag. It contained rings, capsules, unsent birthday cards, and the red string given to her by Gu Jiaxin. The movie ticket she watched for the first time with Gu Jiaxin. The cabinet in Gu Jiaxin's room always kept the doll that Chang Jingchi caught for her for the first time. Chang Jingchi later became ill and jumped into the sea. After Chang Jingchi's death, Gu Jiaxin became silent and watched the sunset with Chang Jingchi's photo in his arms every day.
Intention: Don't leave any regrets