Underground
As long as you can remember, you've lived in the ground.
Not that you usually think of it as ground: Since you were two, the "ground" has been behind the smooth pink plastic surface of walls and ceilings as well as the floor.
Pink, of course, was the color the High Keepers chose to help minimize "adjustment trauma" when everyone moved into the huge caverns 17 years, 6 months, and 24 days ago. The color pink is psychologically soothing, they claim.
So why are you going slowly crazy?
You try to keep it hidden, though. Wouldn't do to have the High Keepers find out you're a social misfit, bad for the stability of the community. They'd make you complete one of those awful embarrassing half-public, half-private "readjustments" and that would not be fun.
Come to think of it (as if you thought of anything else) nothing about this claustrophobic hole in the ground is fun.
"THEY don't think of it as a hole in the ground, do they?" you muse out loud. "Those self-appointed bigshots would keep us here forever if they could."
Jennifer, the only other girl you bother socializing with anymore, stares at you with apprehension. "You shouldn't talk like that. They might hear you."
"The Hive-Keepers?" you ask innocently.
"High Keepers." Jennifer's eyes widen with worry. "I really have to be going..."
"So go." You watch as she stumbles out of your cubby. There goes your last friend. To join the rest of the warren in ostracizing you. You wonder why you don't care more.
Suddenly your console beeps. Before you can begin wondering who'd be contacting you, you see the official seal of the High Keepers. A sense of foreboding warns you, but you are still shocked when you read the official summons.