Ainz Ooal Gown (アインズ・ウール・ゴウン), formerly known as Momonga (モモンガ), is the main protagonist of the Overlord. He is the guildmaster of Ainz Ooal Gown and regarded as the highest of the Almighty 41 Supreme Beings by the NPCs of the Great Tomb of Nazarick. He is also known as Momon, a dark warrior and leader of Darkness. He is an adamantite ranked adventurer and the most powerful adventurer in the Kingdom.