A world full of slaves / slave-master (M for F)

In this world, almost all women are legally enslaved and it is a male dominated world. From a specific age on (open to be determined) women are allowed to be enslaved and sold for various purposes, with their main purpose being to provide pleasure for the male citizen.

Slave markets, auctions and stores are nothing special anymore, with diffrent brands of stores selling higher or lower quality of slaves, much like clothing. The quality and price of a slave is determined by their age, body shape, obedience and looks. Most women accept their fate of being a slave, but especially newly enslaved girls can be disobedient at first.

Higher paying customers mostly hand those off to "slave trainers", because of their lack of time and patience to train slaves themselves, who then teach the slaves obedience in the will of the owner. If slaves missbehave a lot, are disobedient, unwilling to learn, or do their owner harm, they are sent to the prisons of the world, the most brutal form of discipline. In prisons, they then are locked in with the inmates, who can almost do anything to their liking to the slaves, to teach them a lesson. This leads to a lower crime rate inside prisons, along the men, and furthermore help to discipline that worst behaving slaves.

Following roleplaying plots are possible:

-normal slave/master

-slave/slave trainer

-slave in prison

Feel free to suggest any changes to the plots