How the Grand Duchess Returns to Her Tower

Leicia is a famed genius mage who rules over the magic tower. However, when her own pupil betrays her, Leicia's soul wakes up in the body of Grand Duchess Priscilla Eckhart. Unfortunately, Priscilla's body cannot wield magic, so Leicia needs to take the long way around to getting her body back and restoring the Grand Duchess' soul as well. The odd complication is Calix Eckhart, who is intent on finding out who is in his wife's body, even if it means hiding his own identity to do so. Will this tag-team succeed in restoring their original lives?