Welcome to Santa Magdalena's Boarding School for the troubled youths.
If you've ended up here you must've done something pretty bad or you're one of the unlucky ones.
Rule number one to survive in this place: if you can, join one of the gangs. It will assure your protection.
Survival rule number two: traitors are punished, so show some loyalty.
The final survival rule: whatever you're doing, don't get caught.
Once again.
Welcome to hell.