Humankind is a peculiar species. As much as it can give birth to the most magnificent masterpieces, this race is also bond to cruelty and destruction. Once was a man obsessed by the weirdness and the horrors he thought he could create. In order to realize his ambitions, he spent his days and nights locked inside his home, where phials, machines and dusty books covered every visible corner. Hidden from every eyes in town, he proceeded to his twisted experiments, trying to push the limits of life. He was rarely seen under the light of the sun, but when it occurred, he always carried a bag or a wallet, filled with God knows what. Everyone gossiped and whispered about what was being done in the dark of his laboratory. So lived W.D. Gaster. A man surrounded by mystery, but cursed to be the victim of the hatred and filthy curiosity of the townspeople. His almost certainly unethical practices made him a despised being among his neighbours. Screams and groans often came out of his home, but none dared venturing inside nor even nearby, fearing what might be taking place on his property. And since none had proofs of his wrong deeds, nothing was being done to him, by fear of his wrath.

However, one day, he was caught stealing a corpse from the cemetery, and the townspeople, now given a legitimate reason, gathered and chased the madman out of his home, destroying what he had left behind. Gaster, fleeing but without losing his dignity, held up to the small remains of his research, saved in extremis from the flames, and cursed humankind for not understanding his genius. He then went on a journey to find a new haven, a sanctuary for his crazy intellect to prosper in peace. He left on a small boat he could afford with the gold he had left and sailed overseas for years before finding a deserted island, filled with pines, oaks, maples and wild flowers. He went ashore and installed himself deep in the forest. He lacked human bodies for his experiments, so he used various animals instead, which were numerous on this wild new home of his.

Over the years he built a new laboratory, one much greater than the previous he owned. Here his madness could flow and thrive as he wished and thus grew a new ambition in his mind: twisting nature, have the laws of biology bow to him. He created atrocities, anthropomorphic creatures that he released on the island, watching their development, studying the life he created blossom before his very eyes. And to his delight he one day found two rotten bodies, whom might have belonged to reckless adventurers. He created two living skeletons out of them and released them with his other creations.

His madness became a source of life and on this island that was now completely his, he could let his demented genius prosper. And so to protect the work of his life, he created the ultimate barrier between his realm and the world that rejected him, with his machines and his craziness, he gave birth to an eternal storm of never-ending rain and gigantic waves surrounding his little paradise of darkness. Nothing could enter, just as nothing could leave. His work was trapped within the Isle and so was he. And he was the only one capable of breaking this barrier he created.