Jun is asked to accompany a group of students an on outdoor trip and she begins experiencing unusual nightmares. To make matters worse, in a nearby chalet are a group of martial artists who take too much of an interest in Jun and her female students. However, these are no ordinary martial artists, but in actuality, they are demons. After reverting back to their true form, they break into the nearby chalet to rape the girls. Jun is caught by the demons and they proceed to violate her.