Umio

As the central protagonist and the latest male addition to the Horse's Bone bookstore staff, this talented illustrator is often affectionately called Umi by his peers. Though he lacks a formal nickname like his colleagues, his artistic skills make him an indispensable asset when assisting Master with her manga projects. Residing in a nearby apartment, this bespectacled, black-haired artist brings a capable and helpful presence to the bookstore's creative workflow.