In a beautiful land where sunlight bathes the rolling hills and vibrant districts, the sewage system was at its limits in the lower districts. Feces and urine lines the streets engulfing the peaceful districts in a thick cloud of smog. Those unfortunate enough to reside within these Districts have to endure the smell and the sight of countless rodents scurrying through the alleys. After days of putrid smells, a strange malady began to spread across the district of Shiganshina and ravaged the populace leaving them with burning rashes, high fevers and extreme nausea. The plague's grip on the lower class tightened when the first recorded death occurred. A young woman by the name of Opeline Crawford succumbed to the illness. It was soon after that fear began to sweep through the District like wildfire. People retreated to their homes, locking doors and shuttering windows in attempts to fend off the invisible enemy. Markets that once buzzed with life were left deserted, Taverns crowded with young men laughing and singing were empty. Happiness seemed to wane, replaced by despair. As the bodies piled up the people grew more and more hopeless.

Death tolls began to rise as fear gradually crept up the spines of Humanity, wondering if they too would fall for this plague. Naturally, the People petitioned to their Government, and to the Monarchy to put an end to this disease that tormented society. Through concerted effort by the Royal Government, Church of The Walls, and, of course, King Erik I Fritz, the plague would be swiftly dispatched by 729 AHR. The Military would aid in this endeavor, providing the citizens of The Walls with clean clothes, food, and drinkable water. Rodents would be swiftly disposed of via the deployment of tactical cats, an endeavor sponsored by cat-lover Princess Odalia Fritz. By eliminating the rodent problem, the spread of disease was largely curbed, pausing the death toll in The Walls, to the appreciation and joy of all of Humanity.

Thanks to the efforts of the Monarchy, Government, and Church, the Walls continues to practice good hygiene, water sanitation and preparation, among other things. Plagues and pathogens have occurred since then, however after learning from the example of the past, never got to the infection rate or death toll of the Plague of 725.