Far across the Western Ocean on a mist-shrouded island guarded by giant sea monsters, heroes come to explore the mysterious dungeons that lie below the surface. None have yet to reach the bottom and return to tell the tale. Each party gathers daily for a new round of potion-making, sword-sharpening, armor-buying, and dungeon-crawling, and after hours of leveling up in dangerous battles with monstrous creatures from the depths, they rest and try again the next day when everything repeats. That is, until one adventurer stops to ask why. Is it endlessly exciting, or simply endless?