It's the first day of school again, but this year I'm accompanying my little brother. Looking at the familiar school, familiar teachers, and the same students, the only difference is that we are a group of students who have graduated long ago. We have not been here for a few years. The teachers we were familiar with before look at us now with unfamiliar faces. It was only after hearing that we announced our home, that we suddenly realized that the little girl has grown up now. I always felt that I was not far away from that time, but only now did I realize that I had really gone far. The patter of rain is also melancholy. My youth was taken away by that rain before I knew it.