I should also consider relationships. A supportive friend/colleague who encourages her. Maybe a coworker who's the opposite—outgoing—which creates contrast and dynamics.
Appearance-wise, her shyness might show in her posture—maybe wearing glasses, a modest wardrobe, disheveled hair from long hours. Workload could affect her having messy desks, coffee stains, tired expressions. hitomi tanaka this shy librarian with colossa work
Also, think about dialogue. How does her shyness affect her speech? Maybe stammering, low volume, hesitations. Workload might cause her to multitask in conversations or appear distracted. I should also consider relationships
Backstory: Perhaps she studied library science because of her love for books, but the job is more demanding than she expected. Maybe family or personal reasons for shyness—like traumatic social experiences. Her workload could stem from an understaffed library or personal perfectionism. a modest wardrobe