Katja spent her entire childhood and youth as a barmaid in Quorn City, never straying beyond its limits. She sports short blonde hair brushing her ears, warm brown eyes, and a practical yet cheerful wardrobe: a sleeveless brown dress decorated with three delicate ribbons, a tasseled dark brown waistband, and orange ballerina flats. Her demeanor radiates consistent warmth, making her a familiar, welcoming presence to patrons.

Her life shifts when Jiro intervenes during a confrontation with intoxicated patrons, sparking a steadfast friendship. She peppers him with questions about his skyfaring journeys and draking ship life, her curiosity piqued by worlds beyond her own routine. When his crew docks in Quorn, she lends her skills to their endeavors, chopping vegetables or stirring stews during the communal preparation of dragon meat. Their bond deepens as she trims his unruly hair before his departure—a tender, symbolic act acknowledging his coming of age and etching a lasting emotional imprint on their relationship.