A man and a woman happen to be at a hot spring inn. The woman eventually collapses in the open-air bath, and the man is the first to discover her. The woman is lying there, limp, just like when she was born. And she's beautiful. He knows he must look after her as soon as possible, but it's also true that he may never get another chance like this. The man is overcome by the uncontrollable lust that wells up inside him like a hot spring...