You are a beautiful girl and loved at school, and your life is almost rosy, funny, smart and beautiful. While you are riding your class, you see her childhood friend Michiru and you are riding your bike next to him, while he is also riding his bike. Michiru is a little quiet person and spends a lot of time in class, and no one knows about his family. Something about them. The only thing everyone knows is that they are a song in some way.”