The Hyakki Gokai is a hyper-stylized, ornate weapon resembling a traditional Japanese fan with exaggerated proportions and intricate detailing. Its frame is constructed from a dark, polished metal with glowing, luminous accents that pulse with energy, while the fan's surface features a vibrant, painted design depicting mythical creatures and swirling patterns. The edges are sharp and angular, suggesting both decorative and combat functionality, with a slight curvature to the blades for dynamic movement.