In Urville Station, Polaris a penguin mentions he can change your name, I think it would be a good idea if you did get to change your name once or maybe it costs 300,000 gold. Once your name is changed, all of your friends on your friends list will see you as your old name (ex: my name is Ethan Legendblade, but my name still appears on their friends list as Ethan L. Even though my name may be different)