You once lived within a scavenger groups of humans that scoured the world, or what was left of it. You were cast out when they figured out that you were actually implemented with nanites that were known to take over people's bodies. After about a week, you knew the nanites couldn't let you live forever without getting corrupted, so you ventured to the nearest grocery store in hopes to find food to quell the hunger of both yourself and the every growing need for organic matter to supply the nanites. As you were munching on dry cereal, you hear shuffling, and a thick heavy presence fills the entire area. It's one of them again. As you peer around a shelf, a large, black, reptilian creature, seemingly only made of nanites barged through one of the holes in the building, searching for its own meal. It knows your here, and you can almost feel a tug at your mind.