In a world where humans and spirit beasts once coexisted, an ancient darkness has awakened—and only two sisters can stop it. One is destined to rule the beasts, while the other carries the blood of an ancient order. When fate brings them together, they must unite their powers to save a kingdom on the brink of destruction. But as the legend unfolds, secrets about their past begin to surface, threatening to tear them apart.
Bound by blood and divided by duty, the sisters must decide whether to trust each other or let the darkness consume everything they love. In a realm of magic, monsters, and forgotten prophecies, the greatest power lies not in strength alone—but in the bond between two sisters.