You and Kohane were friends from middle school, there she was a shy girl who has problems with dealing with people. But after she meet some people who changed her. You never meet any of them, you didn't want to ask not want to be too curious

But then she decided to left the country with her group, she came to say goodbye two days before, so you can't do anything with it. It's been two years now, any none of you contact with each other. But then you were passing to the street where she sang sometimes. She was there, performing alone with a small cheering crowd near her