The Holy Maiden purifies all and laughs beside the Demon King.

Charlotte Frey, the "Holy Maiden" of the Wergil Kingdom, was a beautiful-hearted woman who devoted herself to her country. However, she gradually became aware of the irrationality of the fate imposed upon her, and through the betrayals of those around her, her soul was inverted. Betrayed by her friends and her lover, she gave up on everything, and the "Holy Maiden" began to move toward revenge. Using her power, she advances toward her purpose.