I'm Quitting Heroing

When Demon Queen Echidna launches her assault on the human world, the people rely on the hero Leo Demonheart to defend them. Gifted with unstoppable power, Leo swiftly drives back Echidna’s forces, saving humanity-but instead of praise, he faces rejection. Terrified of his strength, the very people he protected turn against him, fearing he might one day bring about their ruin. Exiled from his homeland, Leo drifts without purpose until rumors reach him of Echidna regrouping her army. Desperate for acceptance, he seeks out the demon queen, hoping to join her side. Though Echidna refuses him outright, her four generals allow him to stay, secretly working under their command. Disguised as the masked warrior Onyx, Leo tackles the demon army’s troubles, slowly making life better in the castle. But his true aim remains uncovering the reason behind Echidna’s war-a mystery he’s determined to solve.