Claudia Levantine commands the allied forces as a holy knight and commander-in-chief, acclaimed as the strongest princess knight. Her core duty is serving as personal bodyguard to Eostian leader Celestine. Trained by the prominent military figure Grave Levantine, who became her father figure and mentor, Claudia later married his biological son Klaus, an extremely kind scholar official. Though satisfied with her marriage, she regretted their inability to conceive children, causing dismay within the family. Her personality displays duality: outwardly serious and strict, yet tolerant towards others. By day, she embodies a chaste, composed wife; in battle, she transforms into a formidable warrior. Deep love and loyalty for her husband Klaus define her. Some assessments categorize her as an ENFJ type. Physically, Claudia has brown hair typically styled in braids or a bun, blue eyes, and a distinctive mole beneath one eye. Her functional yet revealing armor includes shoulder pauldrons, gauntlets, thigh-high boots, and visible white underwear beneath the plating; supplementary materials occasionally reference her noticeable physical attributes. Her narrative culminates in betrayal by her former mentor, Grave Levantine. This act facilitates her capture by opposing forces, making her the second-to-last princess knight apprehended after Grave's defection to the enemy. Beyond the primary storyline, Claudia appears in various manga adaptations.