Don't call me "auntie"... ~Middle-aged woman jealous of young girl's free-spirited sex~

Chisato is a married woman who works as a psychiatrist at a certain clinic. For a refreshing vacation, I decided to use the director's villa... Chisato forgets about her relationship with her husband and enjoys her vacation by herself. After dinner, Chisato returned to the villa and saw an incredible sight. A young man and woman are having sex in the living room. When I hurriedly checked with the manager, I was told that the young woman was the director's niece...