The Too-Perfect Saint Tossed Aside by My Fiancé Sold to Another Kingdom (LN) 7

WEDDING CRASHERSMia and Prince Fernand are tying the knot! Though eager to attend her sister’s wedding, Philia is apprehensive about returning to Girtonia, the land that sold her away. Her fears prove justified when the nuptials are interrupted by Erza announcing a demon has infiltrated the castle! Even worse, the disgraced Prince Julius seems to have a hand in this newest mess. But nothing can compare to the greatest shock of all—when they finally face off against this demonic foe, Philia finds she cannot use her magic! What could possibly nullify an Archsaint’s power? And does she stand a chance without any of her hard-won skills?