Added new idea
Your family has always been a bit odd, noting extraordinary but just a bit different. For one your whole family is lucky in everything they do including health. You had not been sick more then the few occasional childrenís sicknesses everybody gets. You had always gotten out of the occasional childrenís falls and even a car crash without so much as a scratch. Your family traces its lineage precisely back for hundreds of years and every family gathering is a huge affair. But thatís just your family noting special, or at least thatís what you have always believed
That is until your 18th birthday when your parents explain that you will be moving to live with your godmother. The odd lady you have only seen once maybe twice in your life. She is one of those eternally beautiful people, impossible to pinpoint in age. To your surprise you find that she looks exactly the same as she dos on the picture taken when you were 8 years old and she visited you the first time giving you a ring you still ware.
She explains in the presence of your family that she is in fact a Fairy, one of the high Sidhe. She is perfectly straight faced as she dos so and your parents seem absolutely acceptant of this. She explains that from now on you will live with her, paying the depth your ancestors entered into when they made a deal with her. In return for a little help, they agreed to each generation promise her one child to be given to her when she reaches 18 and to be hers to treat and do with as she likes until she wishes. She explains that you will be allowed to continue attending school but you will move, but that you should not expect to ever work in your life, not unless she desires you to.
She would then continue to train you as a personal servant, assistant, and pet.
This game would likely be in Exotic and I am interested in somebody open minded and again somebody willing to put down a few paragraphs a post at least.