The mistress heads to the slave market to purchase new servants after previously selling off her perfectly trained masochistic servant as a finished product. She selects two male slaves and one female slave, locking them all in the dungeon of her estate. One by one, she summons them to serve as playthings for her desires, treating them harshly. As the purchased slaves belong entirely to the mistress, they are not allowed to wear clothes and remain under her complete control at all times. The mistress treats the female slave just like the male slaves, mercilessly whipping her and enjoying sexual play using her pussy together with the male slaves. Furthermore, she thoroughly develops the female slave's pussy, turning her into a sex doll ready to be lent out to male friends for sexual use.