User blog comment:IamJakuhoRaikoben/Chapter 327: My Part Too, Review./@comment-5146634-20130414004341/@comment-4829046-20130414102050

That's just it, simply being used as fan-service all the while being physically abused in some way is not what you would call "useful" to the story. Is there any kind of erotic concept that WASN'T used on Lucy? Well the forced to strip part was Yukino but STILL! It's like

Dragon Slayers - Always be awesome and are the strongest

Celestial Spirit Mages - Get physically assaulted or publicly humiliated and ALWAYS lose their clothing.