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

Satoshi Hinoas Momonga / Ains Ooal Gown (voice)
Yumi Haraas Albedo (voice)
Sumire Uesakaas Shalltear Bloodfallen (voice)
Manami Numakuraas Narberal Gamma (voice)
Akeno Watanabeas Virtuous King of the Forest (voice)
Aoi Yuukias Clementine (voice)
Ayumu Muraseas Nfirea Bareare (voice)
Emiri Katoas Aura Bella Fiora (voice)
Yumi Uchiyamaas Mare Bello Fiore (voice)
Masayuki Katouas Demiurge (voice)
Shuji Katayama