This is the story of a group of teenagers, a story that belongs to you and me. There is a poem that says: "The spring clothes were thin when I was young." How beautiful it was to be young. This article was inspired by nostalgia. I wrote it down to remember it, so that I can have something to remember when I get older. I hope that in my later years, after reading this article, I can sigh: "So there are such interesting things!" That will be enough.