The Demon Lord's Lair: I Hunt Players to Level Up

【Transmigration + Villain + Rebirth in Another World + System】 Mo Yu transmigrated into the world of an online game, but not as the player he knew. Instead, he became a monster hated by everyone, and from then on he spent his days being hunted. Fortunately, even in this cold and lonely life, he had a cozy little nest of his own. Relying on it, Mo Yu grew from the weakest level-zero mob into a Demon King ruling over his own domain. But as Mo Yu grew stronger, more and more people set their sights on him: the noble and pure saintess, the proud princess, the mighty Valkyrie, the steadfast female knight… Wait, are you sure they’re really here to kill me?