It's Just Because I'm Too Outstanding

Weren’t we supposed to be killing monsters? Why are you hacking at Yama?

On the first day after awakening my Overlord Blade, I excitedly chased down and hacked at a hundred evil spirits. Then the blade suddenly changed, and a prompt popped up: “Rampage Mode unlocked: Permission to slay Yama granted.” The gates of the Underworld burst open, and Yama advanced with a cold laugh. “New guy, do you know the rules?” I turned around and rested my blade against his neck. “Rules? From now on, I am the rules!”