User blog comment:Darkcloud1111/Good Idea, Bad Idea-Best Day Ever/@comment-2006510-20140726042645/@comment-3146930-20140726091052

This isn't just my opinion, I'm basing it on events in the show. During Jaune's fight with Cardin, his Aura isn't gone, yet a knee to the gut is clearly painful. If Aura blocked everything as you suggest, then this wouldn't have hurt. Then later in the forest, Jaune has a bruise on his cheek from Cardin hitting him. When the Ursa Major attacked, Jaune took a few hits from it before looking at his scroll and seeing that he had little Aura left. This means that his Aura was still there when being beat up, so once again a bruise shouldn't have appeared at all because as you suggest, Aura blocks everything.