Actually the axe girl was completely in the right! He was coward for not doing what he thought was the correct way, instead he listened and did what the hero told him, ending with him not contributing much! Her saying he's a coward it's because he didn't stick for himself! Why does he should expect to be pampered? Who cares what others think! Be a fkn man! But hay, now he can do it even without effort, since he got the book! Imo, it would be much more gratifying surpassing them with his own strength (since it seems he isn't a weakling, at least not in magic) and not relaying on a cheat!