* Based on the light novel series by the same name written by Maruyama Kugane and illustrated by So-Bin. Ainz Ooal Gown, the undead sorcerer formerly known as Momonga, has accepted his place in this new world. Though it bears similarities to his beloved virtual reality game Yggdrasil, it still holds many mysteries which he intends to uncover, by utilizing his power as ruler of the Great Tomb of Nazarick. However, ever since the disastrous brainwashing of one of his subordinates, Ainz has become wary of the impending dangers of the Slane Theocracy, as well as the possible existence of other former Yggdrasil players. Meanwhile, Albedo, Demiurge and the rest of Ainz's loyal guardians set out to prepare for the next step in their campaign: Nazarick's first war… Source: MAL Note: The first episode received an early screening at a special event held at United Cinema Aqua City Odaiba on 17.12.2017 and later received an early airing on Abema TV on 30.12.2017. The regular airing started on 09.01.2018.