on a galactic scale
The Pyris are actually mutated Tetnik trapped on their own desolate world, Nano, cut off from all other planets and civilizations. They lost their memories when mutated by the Atom-Generator's effects. The Pyris look like walking infernos, their bodies are constantly on fire, but the fire doesn't burn their skin. They live in colonies all over Nano called Rej. Each of those colonies has a leader or representative called a Praz.