The Regressed Demon Lord Is Kind (allnovelfull-com)

My whole life, all I wanted was power. I churned the world into rivers of blood and eventually gained the title, “Demon Lord of Strength”. However, all this became useless when I lost to a party of heroes. But what can a loser say? As I laid dying, I was forced to listen to the hero’s gibberish: “If you are born again…