Somewhere in the future, mankind has depleted all energy and fuel sources, however they have somehow engineered a way to use human excrement as fuel
मग जास्तीत जास्त इंधन निर्मितीसाठी त्यांनी पर्यावरणाची मोठ्या प्रमाणात हानी करून जैविक इंधने शोधली.