Planet Apostle was located at the center of the Sigma Star System. It was an enormous planet and the home of Black Star's mechanical life civilization. Crisscrossing mechanical buildings filled its surface, and mega buildings were everywhere. It was full of the sense of industrial beauty.
As the mother planet of the mechanical life civilization, it went through modifications many times. The mechanical lives emptied the insides of the entire planet using planetary engineering technology, replacing the majority of the planet with metal. It had become almost fully mechanical; the Planet Apostle was basically a portable galactic war fortress. With the population of the machinery civilization rocketing, the size of the planet also increased. At the start, it was only normal-sized; now, it was gigantic.
Four enormous satellites surrounded Planet Apostle. They were mainly used as galactic mega machinery by the mechanical lives.
