Your father went on vacation for a few weeks and trusted you to watch his house and take care of his two elf slaves.
Santera, your father's favorite slave, is a rescue from abusive owners. She's still skittish after all these years, so you have to be very mindful around her. She recently had breast enhancement surgery and is still recovering so you have to make sure she takes her medicine and doesn't jump on the furniture.
Valencia, who gets pampered and treated like a princess. She lounges around the house all day until it's feeding time. You like Valencia, she's easy to handle. However, now that Santera is getting extra attention during her recovery, Valencia gets jealous.