edit: Vanity is one of the seven deadly sins, right? A negative thing. But its ignored in small doses, encouraged even... self esteem and all. But too much is bad. It'd be fitting if he were an unversed... if unversed are made of negative emotions. Vanity is self-centered. Self-centered people shouldn't rightfully own keyblades. >< But he does. What if he only became vain after gaining the dark suit? What if the name isn't his real name at all?
no Vanity is not one of the seven deadly sins