Dihua High School, the provincial leading high school. This is a tragic story with a happy ending. Two girls, one boy, not a love triangle, but a line. They were all chasing the elusive phantom light, but they never realized that there was another person standing in the shadow behind them. Many years later, the girl sadly discovered that there was no trace of herself in her youth. While she was busy searching, she lost herself. Her biggest dream is to live as another person. But he didn't know that the boy silently kept this girl who didn't even like him deep in his heart, using tit-for-tat as a strong door to his heart. Youth is always looking forward, but unwilling to look back. We have no way of knowing how much we have missed in the time we regret looking back once, until we regret it many years later. Fortunately, youth cannot be turned back, so youth has no end. I want to pick up my own life bit by bit.