Memiko, who married a man running a construction business, had an affair with her husband's subordinate due to sexual frustration. One day, while she was engrossed in sex, her stepson Shunhiko found out about the secret. Taking advantage of her weakness, he demanded, 'Do as I say.' Memiko refused and pleaded, but with no escape, she eventually took her step-son's penis into her mouth. Called a 'sex slave,' she was relentlessly raped, gradually losing her sanity...
