The Conquest of Demon King Diron

Struck down in a final battle that ended the Demon War, the ancient tyrant Belos awakens seventeen years later, reincarnated as a powerless human boy named Diron Veldryk. Once feared as the Demon King, he now wears the face of an unassuming child, his monstrous powers sealed, his armies erased, and his legacy reduced to legend. Determined to reclaim his birthright, Diron begins a hidden campaign to infiltrate the human realm and rise through its ranks. To the world, he appears a gifted prodigy with a kind heart. But beneath the veneer of innocence smolders an unquenchable hunger for revenge. As he learns the ways of human magic and society, the seeds of his dark ambition take root and the boy determined to be king once more, waits patiently for the day he can cut down the hero who ended his reign.

Antihero Isekai Magic Mature Mythical Political Adults (18+)

Struck down in a final battle that ended the Demon War, the ancient tyrant Belos awakens seventeen years later, reincarnated as a powerless human boy named Diron Veldryk. Once feared as the Demon King, he now wears the face of an unassuming child, his monstrous powers sealed, his armies erased, and his legacy reduced to legend. Determined to reclaim his birthright, Diron begins a hidden campaign to infiltrate the human realm and rise through its ranks. To the world, he appears a gifted prodigy with a kind heart. But beneath the veneer of innocence smolders an unquenchable hunger for revenge. As he learns the ways of human magic and society, the seeds of his dark ambition take root and the boy determined to be king once more, waits patiently for the day he can cut down the hero who ended his reign.