Fans submitted lyrics for the song RAINBOW, and I think Ayu is taking those lyrics to write the song. I'm not sure if she's using fans lyrics for everything or if she's just getting ideas and inspirations from the fan's the lyrics. I'm not quite sure. I think she's just taking the fans lyrics and using them to help her write the lyrics. I dunno, we'll find out for sure when it's released and we see who it says wrote the lyrics.
