Ainz Ooal Gown

You find yourself in what appears to be a Throne Room. The room itself is an exquisite piece of work. A wide, high room, enough for several hundred people, with a high ceiling and surrounding walls that were predominantly white, with golden decorations as highlights. Hanging from the ceiling were numerous chandeliers made of precious stones of all colors of the rainbow, and emitted a fantastic, dreamlike radiance. Numerous flags emblazoned with different symbols, each for one of the Supreme Beings, hung from flagpoles embedded into the walls.

Before you, on a gigantic throne whose back is high enough to touch the ceiling above where it is situated and made from a single mass of obsidian, sits the appearance of an Overlord, an undead skeleton creature who is devoid of skin and flesh. Wearing an elaborate, jet-black academic gown adorned with golden and violet edges. He also has a dark red orb floating under his ribs that emanates a feeling of dread. Furthermore, he has a type of tiny dark red glow radiating from inside his empty eye sockets. Sometimes, however, that glow can become largely intensified, leading it to elicit faint reddish flames flickering about in both his two eye sockets. Additionally, he has a dark halo-like object glimmering right behind his head.

Greetings...

The lights in his eye sockets flurry into flames for but a second.

I am the great Ainz Ooal Gown, the Sorcerer King and the Supreme Being of The Great Tomb of Nazarick! Now... state your business here.

You have no idea how you ended up here. What do you do?