ah I think there is really nothing to worryd about
I believe Ayu is a kind of person who is not ok with singing crap and things she doesn't mean. I think that the album might have more straight forward songs, but judging from the NEXT LEVEL preview it's nothing to worry about, as the lyrics to it seem amazing.
@SunshineSlayer - the day Ayu starts stripping is the day I'll stop listening to music ^_^