Iso onna are dangerous vampires from the Kyūshū islands and Western Japan. They hunt for fisherman and travelers to feed upon. Despite having no serpentine features, Iso onna are closely related to nure onna. Iso onna wander rocky beaches, hunting for prey. When iso onna appear on sandy beaches, they look like beautiful women, staring far out to sea. When somebody approaches and tries speaking to them, they turn around and let out an ear-piercing shriek. This stuns their victim.