In the war against neighboring countries, the Grand Duke’s warriors use dragon-like beasts called Touda as weapons. Touda are admired across the nation and villages take great pride in breeding them. Erin lives in one such village with her mother, Soyon, who is the best beastinarian in the country. However, life in the village is not so straightforward: Soyon is also an Ariyo, a woman of the Mist People - a race that is feared by humans for its mystical abilities. So that she and Erin can stay in the village, Soyon must flawlessly fulfill her duty capturing and disciplining the Touda; but while Erin wants nothing more than to become a beastinarian, she also feels sorry for the Touda and recognizes that there’s far more to them than meets the eye. Can Erin ever become an ordinary beastinarian when her deepest instincts tell her there is a better way to interact with the Touda?