They were made by the "Phantom rights envelopment yearn" Or P.R.E.Y for short. P.R.E.Y is an underground corporation that specializes in creating artificial intelligence. Their goal is to produce machines capable of thinking, feeling and acting independently. P.R.E.Y.'s creations are designed to resemble human beings behavior. Their hope is that these "artificial humans" will one day be able to defeat their flesh-and-blood cousins and take over the world. but E-955 secretly works against P.R.E.Y