The Hyakki Gokusho is a hyper-stylized 3D anime weapon, resembling a traditional Japanese demon mask fused with a bladed weapon. Its primary form features a large, angular mask with exaggerated, menacing facial features, including sharp teeth and glowing red eyes, set atop a long, curved blade. The surface is highly detailed with intricate engravings of demonic motifs and a mix of polished and weathered textures to suggest ancient power. The color palette is predominantly dark with vibrant red accents, giving it a sinister yet visually striking appearance.