The company run by her husband's brother goes bankrupt, and her brother-in-law disappears.
Her husband, who was a guarantor, is left with a large debt and asks the company president, Tabuchi, for a loan.
Tabuchi's condition is that his wife, Ao, work as his secretary.
Tabuchi's demands escalate, and when he asks for a physical relationship, Ao refuses.
The loan deal is then scrapped, and her husband begins to be ostracized within the company...
Driven to the brink, Ao has no choice but to become Tabuchi's "secretary for sexual needs."
Eventually, Ao comes under Tabuchi's control, taught the "dirty talk of begging," and falls into depravity.