From the introduction: Welcome Jumper, to a world of extraordinary people and powerful supernatural beings. For many people, the spirits and demons are nothing more than legends, but for others, there are always monsters lurking in the shadows ready to induce in their perversions and cause mayhem. Thankfully for humanity, the peace of the human world is safeguarded by several organizations, both national and worldwide scope, who maintain the peace by purging the evil spirits before they can cause harm to humanity. On the Youkai side, the island of Japan is currently in a standstill between the great powers known as the Three Big Families and has been so for at least a thousand years. The Great War between the Eastern Youkai, led by the Tenko clan, and the Western Youkai, under the command of the Yoinozaka clan, had their battle for supremacy of the supernatural world halted by the entry of the humans of the Yatahagane clan and their incredible spiritual power. But after a hundred years after the last confirmed sighting of the Yatahagane, the tensions between the two old rivals have escalated to the point that a war could spark again at any moment now. Now, two years after the last major frustrated conflict between the two sides, you find your-self in this world, arriving at the city of Yukemuri, famous for its hot springs. You arrive the same day that the psychic Fuyuzora Kogarashi would register in the Yuragi Inn.