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 dark, polished metal with glowing cyan engravings that pulse with energy, while the panels are made of a translucent, iridescent material that shimmers with every movement. The edges are razor-sharp, and the handle is wrapped in red leather, adorned with golden charms that jingle softly when wielded.