The Eve Series was the first edition of artificial humans introduced by the Biosynth Corp. The line was soon supplanted by the Azura series. Consequently, many Eve models were relegated to service industry jobs fostering animosity with their displaced human counterparts.

The short production run translated to limited parts and service and the majority of units were soon abandoned in favor of newer models. Remaining units, desperate for acceptance and survival resorted to the comfort trades in order to attract a human host willing to provide a home, maintenance and electricity. Often, they could be found soliciting in alcoves, doorways and alleys, leaning against a wall to conserve precious power resources. It was from this they were disparagingly dubbed "Eileens".