A young wife 'Shizuka' who is dying to have a child is shocked by her husband's diagnosis of 'seedless' at the hospital. After worrying about her husband and wife, she decided to have sex with her father-in-law and became pregnant. The father-in-law, who was excited by looking into the bath, held his daughter-in-law while his son was away, but the act was seen by two old friends of his. The two have been aiming for the plump body of their daughter-in-law for a long time, and they use aphrodisiacs to commit night crawling.
