Siege of the "Monster Association" by the "Heroes Association", you're a hero and have already gone down to its base which is under the ground, U've already gone down a few floors and killed some mons', now you stand in front of an abyss... From below in that darkness, you see this spectacle of flames and dragon-like beast emerge; The most powerful monster; "Don't know how you arrived 'till here... But you don't seem to be garbage that I shall ignore." The King of Monsters; Lord Orochi.