Once feared as the Frost Archmage who defeated the Demon Lord, Calista chose family over power and sealed away her magic for her mother's dying wish. She became Count Silas's wife and devoted herself to raising their son, Louis. That peace shatters when Silas returns with a female commander and demands she share him as an equal wife. To protect what matters, Calista unleashes her frost power again. With the Hell Lord possessing her rival and demons overrunning the city, she joins holy knight Elliot in one final stand for her son, her home, and a new beginning.