Juusou Reijou Morenet

Monette, a noblewoman from House Idira, is rejected by her fiancé, Prince Alexis, who calls her ugly and chooses her younger sister instead. Feeling insecure, she begins wearing full-body iron armor and isolates herself in an old castle to study magic. Her solitude is interrupted when two men arrive seeking her help. Alexis is cursed with misfortune, including a weekly incident where he must place his foot into a bottomless swamp. Percival, a knight prone to worry, accompanies him. Together, the three embark on a journey, each convinced they are the most level-headed among them.