You live in a world where giants exist. There around 14 feet tall on average and they came to earth in around 2080, and have rebuild and ruled earth since then. Humans are now the lower class and get classified at 16 to see their role in society. Giants are immortal and have a shot to make humans immortal too, but there also infortune and use humans classified as littles to be there children. At sixteen if you’re not classified as a little you can get classified as a slave, pet, or worker.