In the virtual world of Yggdrasil, Ainz Ooal Gown, Momonga, a powerful Wizard finds himself alone when the game unexpectedly shuts down. Unbeknownst to him, he has transformed into his in-game avatar, acquiring control over an army of loyal NPCs. Now in the form of Ainz Ooal Gown, a skeletal overlord, he sets out to conquer this newly physical worl