The vast Human World landscape is boundless as far as the eye can see, with fluctuating mountain ranges and ancient forests standing tall. Countless secret realms and dangerous lands abound, with numerous ancient sites lying hidden. Since the ancient years, when the human ancestors took arms, felled trees for weapons, brandished their staffs as flags, and drove out the Hundred Clans, this desolate land has become the territory of human civilization.
The rich land, however, is full of perils. For countless eons, the Hundred Clans have been ceaselessly trying to reclaim this wilderness from the humans, forcing the humans back into the dark age of blood, enslaving them, making them food as the clan's blood food.
