The Hyakki Gokuen is a hyper-stylized 3D anime-style weapon, resembling a traditional Japanese folding fan with exaggerated proportions and intricate detailing. The fan's ribs are made of a sleek, metallic material with a glossy finish, while the fan's surface features a vibrant, colorful design depicting mythical creatures and swirling patterns, enhanced with glowing accents to emphasize its magical properties. The edges of the fan are sharpened, suggesting its use as a melee weapon, with subtle battle damage and wear to indicate its use in combat.