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

Grateful that they weren't cast aside, the floor guardians experience the rule of their true master for the first time. Momonga quickly assess the situation and works toward protecting the tomb from invaders while contemplating what he must do.