The Hyakki Gokufu is a hyper-stylized, ornate weapon resembling a traditional Japanese war fan with exaggerated proportions and intricate detailing. Its frame is crafted from a dark, polished metal with glowing crimson accents that pulse with energy, while the fan's surface features a complex pattern of engraved demonic motifs and kanji symbols. The edges are razor-sharp, suggesting both ceremonial and combat utility, with a slight curvature to enhance its dynamic appearance in motion.