The Hyakki Gokoku is a hyper-stylized, ornate weapon resembling a traditional Japanese war 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 elaborate, hand-painted designs depicting mythical creatures and swirling patterns. The edges are sharp and angular, giving it a menacing appearance, and the overall structure is both lightweight and durable, suitable for swift, precise movements in combat.