Life is a one-way street. Everyone has only one youth, and it is difficult to define it. In youth, there are various examinations such as high school entrance examinations and college entrance examinations, major entrance examinations and small entrance examinations, as well as all kinds of fierce frictions and arguments with parents, teachers, and classmates. Of course, there are also secretive love affairs like the first bite of a green apple. Thoughts are torn apart, these memories are neither good nor bad, and will eventually leave strong traces in the memory. Otherwise, we wouldn't have burst into tears when we saw "Oldboy"; when we saw "A Little Thing About First Love", we couldn't help but think of our youthful self; when we saw "The Girl We Chased Together in Those Years", we seemed to have returned to the innocent and simple days of having a crush on the school beauty in high school.
If you are enjoying the era of youth, or miss the bright youth of the past, you might as well make a cup of tea, stop what you are doing, sit quietly for a moment, look at the protagonist of the story, and reminisce about their passing years together.