After Punishing the Villainous Young Lady

Prince Roger and his companions told Fiancée Arena, who had been bullying the saintess from another world, Miyabi, of the nature of her sins and condemned her. After announcing the annulment of the engagement and her exile from the country, they boastfully held a celebratory party for three days and three nights at the finest restaurant, disbanded, and returned home without even sobering up from their drunkenness. What awaits them upon their return home?