"You are the greatest secret of my youth."
There is an unwritten rule for Class 2 of Grade 3 of a key high school:
No random carvings are allowed on the desks in the second row by the window - there is a half-sentence of a lyric written incorrectly by the previous senior.
Until Su Ting became the new owner of the desk, Zhou Yang slowly traced the second half of the sentence with a pencil:
"The spring and autumn in your eyes are better than all the mountains and rivers I have ever seen and loved."
Later she learned that some songs can only be sung to one person, and some words can only be said once in a lifetime.
Concept: "The most painful regret in youth is not being able to express regret."