Vearn, The Great Demon King, is the primary antagonist of the Dragon Quest spin-off manga Dragon Quest: The Adventure of Dai. He is a demonic God who rules over Makai (the Demonic World) and aims to destroy Earth, so that Makai would rise to the surface. He resurrected the Demon King Hadlar and recruited him to build an unstoppable Demon Army, only to be opposed by the disciples of the Great Hero Avan.