In my dreams, hopes, and everyday life, when I wasn't sure what I was and I was wondering where I should go, when I looked out the window, a little bird appeared. He flew happily in the sky and was crying. I was jealous of such freedom, and when I was little, I was absorbed in playing without worrying about my clothes getting dirty, and I remembered the past when I enjoyed facing things in front of me. I suddenly thought that I shouldn't forget the childhood of those days. No matter what you wear, if you can take a step forward in a way that makes you feel like you, you will surely be able to fly in the future. I wrote it with that feeling in mind.