Comprehensive Manga Ghost King System

The 42nd Supreme Being, Nine Deaths and Nine Burials, traveled with Momonga when the game was closed. In this new world full of unknowns and freedom, he discovered that he might be able to do more. Conquer the world? Nonono, that's Brother Flying Squirrel's business. What bad intentions can a little devil like me have? By the way, why does Albedo look at me weird? Especially when I saw Brother Momonga and I discussing matters alone, I really couldn't understand it. A comprehensive time-travel work, starting from the world of Overlord, the King of the Undead. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.