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, suggesting a mystical power source. The fan's surface features elaborate engravings of mythical creatures and kanji symbols, with a vibrant color palette that contrasts dark hues with bright, electric blues and purples, emphasizing its anime-inspired aesthetic.