C-leneC-lene is a planet wrapped almost completely with water, having only one single continent that stretches unbroken along the equator, separating the two vast oceans that cover its northern and southern hemispheres.
A long long time ago, this continent was a tropical world full of rainforests, beaches and colorful wildlife, which became the cradle for the species of beautiful humanoids with soft features, adorable ears and shiny freckles covering their skin. They were the true gems of this world, untouched even by predators.
Alas, the immense growth of their civilization and the sheer lack of space turned it into an endless megalopolis whose buildings would grow higher and higher, thousands after thousands of years...
Today C-lene has the "ring of civilization" consisting of such big structures that it's visible from space, and the two great oceans are slowly but steadily becoming toxic dumps, whose poisonous vapors make the lower urbs dangerous for health, so higher and higher urbs are being constantly built, but the higher the more expensive they are.
Officially the lowest urbs are considered as a dead zone where nobody lives, but in reality there are still all kinds of survivors down there, mostly leading criminal lives and struggling with mutations.
The middle urbs are a slave zone, it is safe but cheap, and once born there, one is doomed to live a life of being someone's playtoy, but even this little requires a lot of hard work as being a playtoy implies having the most pliable body, as the main entertainment on C-lene is body manipulations, and the more extreme manipulations a slave can withstand, the higher is his salary.
"His" because 89% of C-leneans are males and only 11% are females because of a virus that was supposed to solve the problem of overpopulation, which it did but at the cost of making the male/male relationship a norm and turning women into deity-like princesses. Thus even on the lower levels women are never used as playtoys, although they're still in a way slaves of their ability of childbirth...
The high urbs are a noble zone, the home of the Queen and her knights, as well as all kinds of respectable people who have all the money in the world in their bank accounts, and give bits of it only to those who please them. Thus, depending on where one was born and which gender they have, their destiny is pretty clear.