User blog comment:IamJakuhoRaikoben/Chapter 331: Natsu's Strategy, Review./@comment-5894890-20130517233701/@comment-3290324-20130518035016

Not a hunch, it appears to be correct. Because Wendy's attack seemed to hit home, while Mira, who is one hundred and seventy nine million times stronger than Wendy, attacked and it didn't seem to do any damage at all.