Ok I have been binge reading this and after 90 chapters I just realized something important that makes all these dragons look real stupid. He isn't living under a fake identity or anything. He is still using the name he has had his whole life. Him being the greatest Dragon Slayer of the Empire. How does no one know his name? I mean he has killed the most dragons of any humans so how does no one outside of the guy he just kill not put 2 and 2 together. He showed up when he disappeared from the Empire that branded him a traitor. Con only figured it out mid fight from his aura not his name.