Thera, a distant blue-green planet. Almost half a century ago.

Two powerful empires began a war for supremacy that lasted 40 years.
Three years after the "end" of the war, the leaders of both empires decided to work together to restore the life to the planet.
There were a few people alive for such hard work, so they thought to build droids; some man had the technology and some others had knowledge.
These droids would be made by recycling the metals used in the war. Their skeletons were not very strong, but worked fine.They would create energy by burning lapislazuli, the most common mineral in these times.

It's been five years since the creation of the first droid unity and peace continues, but we all know that will not last long.