In a vast and boundless world—a world that unites many races—every living being is born with magic. Each person is measured by their unique Magic Aura. Those with powerful Magic Auras are revered and elevated, while those with weaker auras are considered ordinary.
But behind the beauty and vastness of this world lie countless secrets, still hidden and unknown to mankind.
In a peaceful and quiet village, far from the reach of the Ryou Kingdom's rule, lived a happy family. Tsuyuki Ahira, a renowned swordsman in the village, was one of the warriors tasked with protecting the people from demon attacks.
Near their village stood a great Dungeon, hidden beneath the base of Mount Yettry—the mountain that forms the natural border between the Ryou Kingdom and the Azalea Kingdom.
That Dungeon was one of the "Primordial Dodecarium"—the twelve ancient Dungeons that have existed since the birth of the world. Its name: Dreamless Keep.
A Dungeon that connects to the void that existed before the light was ever born...