Azure Blue Empire controls thirty kingdoms; in these thirty kingdoms, there is a kingdom named Elvis Kingdom. The Kingdom of Elfs.
The Kingdon of Elfs is the most beautiful kingdom under the Azure Blue Empire, and these kingdom people are also the most beautiful and handsome in the Azure Blue Empire.
However, such a beautiful place as Elvis Kingdom has a dark and ugly side, which is slavery.
Azure Blue Empire banned slavery, so the entire Empire and twenty-nine kingdoms under the Empire didn't have any slaves. However, only Elvis Kingdom doesn't follow these rules.
Elvis Kingdon has two types of people: Light Elf and Dark Elf. Light Elf think of themselves as superior and Dark Elf as inferior. As such, Dark Elfs are slaves to Light Elfs.
This thing had been going on for thousands of years; no other kingdom cared about it, nor did the Empire have any time to take care of it.
