The story begins with YGGDRASIL, a popular DMMO-RPG which is planned to quietly shut down on its last day. Our protagonist Momonga decides to stay until the last moment in his beloved game and wait for the forced logout. Unexpectedly, the server does not shut down and Momonga finds himself stuck in his skeleton body and ultimately transferred to an unknown world. "The Powerful Overlord" needs to discover what lies in wait in the new world and face continuous challenges. Having no parents, friends, or a place in society, this ordinary man strives to take over the New World.