Never Let Me Go

I just began reading a book called Never Let Me Go by Kazuo Ishiguro. It's a made-up world that is supposed that have happened in the past. It's about a system where communities of people are raised to be donors to people of the main community so their will be no one that is sick and diseased in the main community. It's for everyone in the main community have peace and happiness while sacrificing people's lives in the donors' community. It begins with a girl named Kathy who is taking care of the donors going through surgery before she becomes a donor. I'm predicting that the book is about her rebelling against the system and refuses to be a donor.