This is a novel about a crush in high school. Life in high school is like lunch in daily life, hasty and beautiful. If you lose this lunch, you will spend the rest of your life hungry until dinner time. I believe this article is what happened around me, and most of it is my own true story. Whether it is a daydream or a tragic reality. It is a story of memories, just like the title of the article, hello, goodbye, hasty farewell, the ending may be guessed by everyone, but I believe everyone can have a deep understanding of what happened. Thank you all for your support.