The Regressed Demon Lord is Kind

Once a ruthless "Demon Lord of Strength," he conquered realms with bloodshed and fear. But his quest for power ended in defeat at the hands of a hero’s party. As he faced death, the hero’s final wish echoed in his ears: "If you’re reborn, live a kind life." To his shock, he awakens in the past—given a second chance. With his terrifying strength still intact, he must now navigate a new life where mercy and kindness are his guiding principles. As he seeks redemption, the former demon lord must confront not only his dark past but also the world that still sees him as a monster. Can he transform into the hero the world needs, or will his blood-soaked legacy haunt him forever?