Misaki hates her mother, who is a prostitute, and runs away from home. - Now, she feels happy living a peaceful life with her husband, but when she reunites with a senior she once had feelings for and is forcibly raped by her, the ``woman'' inside Misaki wakes up... - ``I'm different from my mother!'' she tells herself, but her body longs for a man, and her genitals become wet with lust. - Misaki says this is the last time and allows her body to her senior again. - Forgetting their promise with their husbands, they greedily seek each other's genitals and drown in a swamp of pleasure.