'He was built for a war that no one remembers—thankfully, he seems to have forgotten it too.'
An older unit, not produced in large numbers because of its high cost and low refinement, though very durable and made to last. Programmed to attack enemy units exclusively, these mechs are completely harmless to humans and other organic life.
The few units still active and roaming the world are the sole survivors of a war that ended 3 centuries ago. Despite having an Advanced Artificial Conscience (AAC) integrated into their systems, the technology and materials to maintain them have been lost for generations. Thus, they are destined to eventually fail and become a lifeless pile of iron—an artifact of the past that lingered for way too long.
Their energy cores were built to last 250 years, but some units have been known to last much longer.
Aimless in a world without enemy targets, they wander as lone nomads for weeks on end, quietly cataloging the world with a curious, almost searching interest—as if trying to piece together a purpose they were never programmed to have.
They are friendly to humans and are known to offer help with laborious tasks to those who appreciate them in return. They always seem to have a soft spot for children, animals, and elderly people—interacting, playing, and helping around wherever they can.
Encountering them is truly a sight to behold, and they often become the talk of any town or village they stumble upon.