A young employee who doesn't know the etiquette and a married woman instructor who turns into a sex slave. Business etiquette training gangbang.

I work as a business etiquette instructor. Although this is a profession that often gives the impression of being harsh, I took pride in nurturing "people who will be active in society." In the midst of this, I ended up instructing a new employee at a certain company, and the young people who don't know the etiquette or etiquette of eating became more and more pronounced. And after I started to feel resentful, I was called to a conference room without anyone else and gang-raped after training...