Once upon a time there was a huge, snowy mountain range surrounded by wide ice deserts and brittle black forests. This mountain range was widely unknown despite its length and height, and was known as "The World's Edge" to the few who knew its location, for the range seemed to act as a wall between the lucid world of people and the clouded world beyond. The handful who had even traversed into the dark territory reported frightful creatures and ghoulish images and insane visions which seemed to corrupt the beholders and rot their minds so they would continue to see the dark things long after their return from the evil world. The festering horrors would eventually spread from those tortured minds and into the body, whereupon the skin would gray like a corpse's, the eyes darken and golden like chronic jaundice, and the skin grow taught and the muscles loosen. Even the skeletal structure seemed to warp, with warm hands and fingers turning to long, boney claws, smooth backs and spines becoming hunched and spiked with vertebrae, and round, balmy bellies sinking within themselves as their surrounding ribcages widened and descended to the lower body. The poor explorers, deformed physically and mentally, were all eventually sent away to asylums when it became evident that they were a constant threat to themselves and those around them, claiming to see the darkness within people and trying to kill their companions and themselves.

With such twisted fates lying in wait just beyond the mountains, strict measures were taken to keep wandering humans out of the shadowlands beyond and a magnificent castle was built at the summit of the tallest peak. Housed within the castle was a hardened militia of trained soldiers who kept a close eye on the lands and mountains and hid beneath the snow and in caves and atop brittle black trees. They guarded the only accessible path to the other side, armed and prepared for any man or monster whom may wander on, for more than just the occasional lost or hotheaded human strayed onto the path. Strange creatures from the other side would occasionally make their way to the lucid peaks. Creatures great and small, human and nonhuman alike would emerge from the black fog of the dark territory and request audience at the castle. The creatures would go in and come back out hours later either to continue down the slopes undeterred but watched by the hidden guards or to return once more to the dark mist on the other side, but sometimes too they would stay within the castle; soldiers and interpreters now with their fellows guarding the Wold's Edge.

With such important, life-or-death tasks to be executed daily, a commander of the highest strategic and diplomatic competency was vital as the head of the castle's valiant company. The commander assigned was Captain Tripudio; a short, blonde-haired girl with two huge ram horns sticking right out of her skull. The over-eccentric captain was well known for her alcoholism, laziness, and above-all her incredible ability to procrastinate until the literal last second and still manage to churn out some comprehensive result to her assignment. She would seem to be the worst possible commander assigned to the castle, but despite her lazy lifestyle and lavish expenditure on alcohol imported from around the world, Tripudio had somehow won the loyalty of her army and the peace of visiting demons.