Sebas is the head butler of the Great Tomb of Nazarick, in the anime Overlord. He has several manservants and other butlers under his command. His power closely rivals the floor guardians, who are the most powerful beings in Nazarick, aside from Ainz, the supreme overlord. Sebas is infinitely loyal to Ainz, but unlike most beings of Nazarick, he doesn't see humans as inferior creatures, and does everything he can to protect the weak and innocent. Sebas is heroic, and wants to help others. 