User blog comment:IamJakuhoRaikoben/Chapter 412: Dance Unto Ishgar, Review./@comment-7418318-20141208143333

This chapter once again made me want to slap some sense into Gray. God damn it, we know you hate Demons and all, but at least think for a moment! There must be a good reason why a feaking Dragon said that the book shouldn't be destroyed.

It would seem as if Gray has very limited brain power and that's all used for in-battle strategies, but the moment he's out of battle he turns into a cave-man.