Sold to a neighboring country by her former fiancee, Philia the saint has been hard at work protecting her new home—and the entire continent—from monster attacks. Just when it seems she might be in for some well-earned peace, however...magic-users across Parnacorta begin to disappear. A mysterious exorcist named Erza tells Philia that demons are behind the kidnapping—and that Philia is their real target! How will the too-perfect saint face this frightening new foe?