Demon King of Phantom Thief – A Betrayed Thief Reigned Over the World

Keith, a skilled thief, had his loved ones taken hostage, compelling him to join the quest to overthrow the Demon King. Despite his crucial role in their victory, the king and the so-called heroes, who always looked down on him, turned against him, leaving him for dead. Narrowly surviving the betrayal, Keith awoke to a horrifying transformation—twisted horns sprouted from his skull, marking his rebirth as the Phantom Thief Demon King, a being capable of stealing abilities and power from others. Consumed by wrath, he allied with the remnants of the Demon King’s forces, including the legendary Four Heavenly Kings, and an army of monsters. Now, with vengeance burning in his heart, he wages war against the very humans who cast him aside, determined to make them pay for their treachery.

His newfound powers grant him dominion over destruction, allowing him to strip his enemies of their strengths and wield them as his own. The once-despised thief now stands as a terrifying force, feared by those who once scorned him. As he leads his monstrous legion, the world trembles before his relentless fury. The fallen hero, now a demonic sovereign, reshapes the land in fire and blood, ensuring that none who betrayed him escape his wrath. His legend spreads, a cautionary tale of betrayal and retribution, as kingdoms crumble beneath his vengeance. The Phantom Thief Demon King rises, and none shall stand in his way.