When he was in junior high school, Li Qintao walked into Li Beibei's world. When she graduated, she confessed her love to him, but was rejected miserably, leaving only "Thank you for always". He never thought that they had a two-way crush. Later, Li Beibei let go, but Li Qintao never let go. He regretted rejecting her. When they reunited many years later, they found that Li Beibei was already married to a famous woman, and she returned the "Thank you for always" that she had said many years ago to him.
Concept: Not all youth ends with the male and female protagonists living happily together. That is a fairy tale. If you miss it in reality, you will miss it.