The Hyakki Gokurei is a mystical, hyper-stylized 3D anime weapon resembling a traditional Japanese folding fan with an ornate design. Its frame is crafted from dark, polished metal with intricate engravings depicting mythical creatures and swirling patterns, while the fan's surface is made of a translucent, iridescent material that glows faintly with a spectral blue hue when activated. The edges of the fan are sharpened to a razor's edge, suggesting its dual use as both a defensive tool and a lethal weapon, with the fan's spread revealing a larger, more menacing silhouette adorned with glowing kanji symbols that pulse with energy during combat.