So, I actually did enjoy this story, except for the whole metal aspect, because I don't think it was well done. The metal references seem to be thrown in as a gimmick and are completely unnecessary for the story. So, the last line came off as completely clunky for me.
Also, a minor point, but really rubbed me the wrong way - Raya is dressed as a punk, not a metal head. That made no sense to me.