I'm Not the Overlord!

I actually reincarnated into a different world and became the Demonking Overlord? ! and my task is to destroy humanity! wait, that ain't right. I'm a pacifist you know? i'm not like this at all? what? I killed a thousand human army with my energy blast?! that was an accident! it was the relic's fault! It's all a misunderstanding! hahaha! why can't we get along nicely? huh? so what if I'm the devil? doesn't mean I like doing bad things! Stop annoying me or I will blast you to kingdom come! wait! Argh! Come on! I'm not that evil! I'm not the Overlord!