Eriko had a child soon after getting married, so she had very little time to spend with her husband. She thought that she would be able to spend time with her husband once her child became independent, but her husband did not see her as a woman, and her dissatisfaction only grew. One day, a man selling renovations came to her house. She invited him into her house to hear what he had to say, and made him serve tea, but he ended up spilling the tea on her crotch. She hurriedly wiped it up, but the man got an erection when his crotch was rubbed. Eriko was happy that the man was excited, and they ended up having sex. Since that day, she has been obsessed with the satisfaction of being a woman. Then, one day, her nephew came to stay at her house...