Thanks to you all for your reply.
I showed these lyrics to my other friends and we all voted...
It was a draw between Replace and Daybreak.
So we used both lyrics. Replace was on the first page and Daybreak on the back cover of the photo album.
Our friend liked those lyrics.
Thank you.
Oh, and
chibi_sunny, I had to use Ayu's lyrics, because my friend loves her music. It means more to her, if she knows the song. (
but I agree, Tomodachi has also nice lyrics)