Bind the Neptune System at the Start

Looking for a Book with Multiple Female Protagonists in the City?

I watched it a long time ago. One of the female protagonists is a college counselor. Her monthly salary is not much but she lives a very refined life. The patriarchal family always asks her for money. Later, the male protagonist helps the counselor pay back the money and enslaves her. The first time seems to be in a B&B.