Once, when we were young, we thought parting was far away; once, when we were young, we thought parting was for a more beautiful encounter. But this parting is goodbye to youth. Do we still have many words that we have no time to say, do we still have many promises that cannot be fulfilled... With this parting, they become permanent secrets buried in our hearts. In your youth, have you ever met such a person? It is the most beautiful accident in your youth that makes your calm heart stir up waves and beat with excitement...