Ainz is guildmaster of Ainz Ooal Gown, Overlord of the Great Tomb of Nazarick He is regarded as the highest of the Almighty Forty-One Supreme Beings by the NPCs of Nazarick. He has the appearance of a Skeleton and always wears royal clothes. While Ainz is a cautious and stingy person, he will always try to plan ahead and control details beforehand in order to avoid any haphazard actions that can endanger Nazarick's existence. He has a showman personality and often pretends that he is smarter.