The Hyakki Gokuen is a hyper-stylized 3D anime-style weapon, resembling a traditional Japanese tessen (iron fan) with exaggerated proportions and intricate detailing. The fan's ribs are crafted from a dark, polished metal with glowing cyan engravings that pulse with energy, while the fabric panels are a deep crimson with gold embroidery depicting mythical creatures. The edges are razor-sharp, suggesting its dual use as both a decorative item and a lethal weapon. The overall design is symmetrical with a complex, ornamental pattern that enhances its mystical aura.