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 polished, dark metallic material with glowing cyan engravings that pulse with energy, while the segments between ribs are made of a translucent, iridescent material that shimmers with every movement. The edges are sharp and angular, designed for both aesthetic appeal and combat functionality, with a slight curve to enhance its dynamic appearance during fights.