Extracurricular sex slave

Rika, a university student looking for a job, has long had a physical relationship with the professor, with the condition that she has dreams of her future and would be able to join the company she wants to do so. And I was called to the hotel again that day. There were also men who were considered "friends" who were gathered through the professor's connection. I think I should just hold back now, but the professor will do whatever I want to do to find a job. However, her masochistic nature is seen through, and Rika becomes intoxicated by the way she falls...