Dead Master appears as a striking gothic figure rendered in fine detail for the Figma line. She features long, flowing hair and a dramatic, tattered black dress with layered skirts and sculpted folds that capture motion. Her design emphasizes skeletal and crown-like motifs, including ornate horned headgear and bone accents that contrast against dark fabrics. The TV Animation ver. includes carefully painted facial expressions with cold, intense eyes and interchangeable faceplates to express calm poise or menacing intent. As a Figma, the figure has multiple articulation points for dynamic posing, and comes with accessory parts such as a large scythe, alternate hands, and effect components to recreate battle scenes.

Dead Master is an enigmatic and imposing character within the Black ★ Rock Shooter universe, often portrayed as a rival or dark counterpart to the protagonist. She embodies themes of isolation, authority, and sorrow, commanding a presence that can shift between chilling stillness and violent action. In stories and adaptations she frequently appears surrounded by eerie, skeletal minions and wields a massive scythe-like weapon, asserting control over contested realms and challenging other characters both physically and psychologically. Her narrative role explores conflict born of loneliness, misunderstood motives, and the blurred line between antagonist and tragic figure. Collectors appreciate her dramatic visual identity and the emotional tension she brings to the series' mythos.