In a fictional world reminiscent of medieval Europe, humanity has long been preyed upon by monsters known as “Yoma.” To fight them, a mysterious organization fuses Yoma flesh with human bodies, creating half-human, half-Yoma warriors. These warriors are usually women, with silver eyes and extraordinary combat abilities, but ordinary people fear and shun them.
The protagonist, Clare, sets out on a journey of revenge. Along the way, she meets companions, uncovers the dark secrets behind the organization, and gradually becomes entangled in a conflict that could determine the fate of the world.