A married woman with large breasts, Shinda Masako, 36 years old. Even through her clothes, her large breasts were noticeable, and the building manager was captivated by them. One day, the gambling-loving manager struggled with debt collection and kidnapped Masako, who lived in the same apartment building, handing her over to a loan shark as payment for his debts. The loan shark immediately held a large-breasted molestation event, collecting large sums of participation fees from salarymen who enjoyed ejaculating on women, forcing reluctant Masako into a frenzy of collective molestation and making her a victim of collective ejaculation. She was then trained as a sex slave.
