Jard is physically portrayed as a young adult in his early twenties. His appearance combines elements of approachable youthfulness with clear physical maturity, which shapes how he interacts with the younger students. Height & Build: He stands at 172 cm (5'8") with a filled-out, athletic young adult physique. Hair & Eyes: He has brown eyes paired with light brown hair, which he typically wears in a straight, casual semi-long style. General Aesthetic: Jard carries himself with a relaxed, artsy demeanor fitting for an amateur photographer and trainee teacher. He frequently holds or looks through his camera, using it as a prop that shifts his physical presence from a casual supervisor to an authoritative figure. the relationship between Cas and Jard is a deeply toxic, manipulative, and psychologically tense power struggle. Driven by an age gap and an institutional divide, their connection centers around a camera lens and the shifting control between a student and his teacher.Dynamics of Influence and Validated institutional Imbalance: The connection is defined by the age difference and the formal roles of a student and a trainee teacher, which creates an inherent power disparity. The Role of Photography: The camera serves as a primary medium for their interactions, where the act of being photographed becomes the focal point of their communication and the teacher's influence.