The Hyakki Gokusho is a hyper-stylized 3D anime weapon, resembling a demonic katana with a curved, elongated blade that glows with an eerie, luminous purple energy. The blade features intricate engravings of mythical creatures and kanji symbols, suggesting its cursed origin. The hilt is wrapped in dark, weathered leather, contrasting with the polished, metallic guard that's shaped like demon horns, adding to its menacing appearance.