Fourteen years ago, mysterious structures known as Dungeons began to emerge in various locations across the globe. Inside these dungeons, powerful entities called djinns hold dominion. When an individual successfully conquers a dungeon, the djinn grants their immense power in the form of Metal Vessels, acknowledging the conqueror as a worthy candidate for kingship. Adventurers from numerous empires and kingdoms venture into the dungeons seeking their abundant treasures and the power of the djinns. However, navigating them is no simple task, and only Magi—legendary mages who select kings and foster the development of nations—can guide people through. After spending most of his life confined to a single room, a young Magi named Aladdin finally embarks on a journey to explore the world, accompanied by his friend, a djinn named Ugo, whom he can summon from his flute. Through a series of fateful encounters, Aladdin meets various new friends and allies, and together they begin an adventure that will alter the fate of the world.