* Based on the light novel series by the same name written by Maruyama Kugane and illustrated by So-Bin.

In the year 2138 when virtual reality gaming is booming: Yggdrasil, a popular online game, is quietly shut down one day. However, the protagonist Momonga decides to not log out, and then gets transformed into a powerful skeletal wizard. The world continues to change, with non-player characters (NPCs) beginning to feel emotions. Having no parents, friends, or place in society, this ordinary young man Momonga strives to take over the new world the game has become.

Source: ANN

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Side story: Ple Ple Pleiades
Summary: Gekijouban Soushuuhen Overlord
Sequel: Overlord II
Other: Isekai Quartet
Side story: Ple Ple Pleiades - Clementine Toubou-hen
Other: Ple Ple Pleiades x Kage Jitsu!