The Hyakki Gokuen is a hyper-stylized 3D anime weapon resembling a traditional Japanese tessen (iron fan) with exaggerated proportions and intricate detailing. The fan's ribs are crafted from a gleaming, dark metallic material with engraved patterns depicting mythical creatures, while the segments between are made of a translucent, luminous material that glows faintly with a supernatural aura. The handle is wrapped in a red fabric, contrasting sharply with the fan's dark and light elements, and features a tassel adorned with small, ornate charms.