I'm Quitting Heroing

After single-handedly saving the world by defeating the Demon Lord, Leo—the strongest hero in existence—finds himself entirely unwelcome in the very human kingdom he fought to protect. Rather than celebrating his victory, the people grow terrified of his overwhelming power. Cast out and exiled from the peaceful realm he secured, Leo is left with no home and no purpose among humanity. Seeking a new path, the former hero turns to the one place that might still need him: the defeated Demon Lord’s domain. The demonic kingdom lies in ruins following its crushing loss, plagued by severe shortages of manpower, crippling financial troubles, and a disorganized army. Undeterred, Leo applies for a position within their ranks, determined to rebuild their shattered society. Drawing upon his vast experience and extraordinary abilities, he begins implementing sweeping improvements to restore order and prosperity to the struggling realm. As Leo dedicates himself to revitalizing the demon army, he eventually crosses paths with Echidna once more. Curious about the origins of the conflict that shaped his fate, he asks her why she chose to invade the human world in the first place. Her response reveals an unexpected story that challenges everything he thought he knew.