The Hyakki Gokuen is a hyper-stylized 3D anime-style weapon, resembling a traditional Japanese tessen (war fan) with exaggerated proportions and intricate detailing. The fan's ribs are made of a polished, dark metallic material with glowing blue kanji inscriptions that pulse with energy, while the fan's surface is crafted from a translucent, iridescent fabric that shimmers with a spectral aura. The edges of the fan are razor-sharp, featuring a serrated design that hints at its combat functionality, and the handle is wrapped in a patterned leather grip for secure handling during intense battles.