In the world of Makai, only Monsters or Yokai exists. In this world, young Monsters and Yokais all compete in order to become the next Makai King! Contrary to its name, Makai King is not a royalty, but its a position of highest stature that can only be reach by the greatest, most charismatic and absolute strongest of all Monsters! But before a Monster would even dream of chasing after the title, they must first graduate with flying colors from the prestigious Makai Gakuen, the birth place of the first Makai King, Amon!!