The Hyakki Gokufu 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 crimson accents that pulse with energy, while the fan's surface features a dynamic, swirling pattern that mimics the movement of wind or flames. The edges are sharp and angular, giving it a menacing appearance suitable for combat, with small, engraved kanji symbols that glow faintly along the spine.