Shōko Nagisa works as a pharmacist at the Karasuma Voice Treatment Clinic. She shares a professional rapport with clinic director Ria Karasuma, stemming from their time together in graduate school. Open and friendly in all interactions, she treats everyone without hesitation or discrimination.

She sports brown hair typically pulled into a neck-length ponytail and has green eyes. During work hours, she regularly wears a lab coat. Her personality reflects consistent kindness and approachability, aligning with her clinic role.