"Overlord" is a popular manga series written by Kugane Maruyama and illustrated by so-bin. It follows the story of Momonga, a powerful player in a virtual reality game who finds himself trapped in the game world after it shuts down. As the last remaining player, he takes on the persona of his character, Ainz Ooal Gown, and seeks to explore this new reality while establishing his dominance. The manga is set in a fantasy world filled with magic, mythical creatures, and various factions. Ainz aims to uncover the mysteries of this world and locate other players, all while managing his loyal followers, including Albedo and Demiurge. The series combines elements of adventure, strategy, and dark humor, appealing to fans of the isekai genre.