The Devil Does Not Need to Be Defeated

Summoned to another world as a holy swordsman blessed with invincible skills, Shien could easily crush the Demon King. The goddess calls him the chosen hero. The princess calls him a cheat. Even his teammates suggest he build his own kingdom. But Shien has a different plan—slay weak monsters, grind levels in peace, max out in secret, then one-shot the Demon Lord and vanish into legend. No glory. No politics. Just a quiet, overpowered life. But when he discovers the Demon King might not need defeating at all, his lazy hero fantasy takes an unexpected, game-changing turn.