A young girl named Emiliana looking fine with her blond hair lives modestly as a nun in a remote village, Zamak. One day, a soldier comes from the central city, Marysass, and abducts Laula, who is Emiliana's little sister, in the name of the witch-hunt. To save Laula, Emiliana devotes her virginity to Beherit, a demon, and attains power to fight in return, becoming a "witch". Having lost her humane qualities, Emiliana will be instilled with, still yet keeping her devout and saint-like mindset in mind, sexual pleasures given by men and monsters on her adventure in search of Laula.