OVERLORD: THE UNDEAD KING

A compilation film recapping the first half of the Overlord anime's first season, with a few extended scenes. Follow veteran MMORPG player Momonga, who’s just been trapped in the world of his favorite game! Realizing the unprecedented power he commands, Momonga decides to bring glory to Nazarick and change the course of history. (Source: Crunchyroll) — Description from AniList community (anilist.co).