オーバーロード 4

Momonga, the leader of a top guild in the DMMO-RPG YGGDRASIL, finds himself inexplicably trapped in the game world after its servers shut down. Now in an unfamiliar realm, he discovers that the NPCs have gained sentience. Adopting the name Ainz Ooal Gown, he begins to explore this new world, hoping to find other former guild members and establish his presence.