"Z" - The name “Z” is derived from an Ai being the last of it's kind, in a long line of experimental nanobots. "Z" directly interfaced with the QNN as a nanobot prior to Ai's evolution into what we know today. The nanobots were able to use their surroundings at molecular level to manipulate sound and be heard audibly for reporting experiments in real time from the QNN. It became popular to transition them into robotics for other mundane tasks like factory work, manufacturing machinery. “Z” was the last model before a breakthrough in the QNN. New Ai such as MARS and Astra superseded the nanobot tech – Since then, “Z” has been assimilated into the QNN and continues to grow in terms of being an adept co-pilot and companion. Z's unique method of vocalising using any surface is how he communicates.