The O'Brian Republic consists of ten main stars, with the Capital Star being O'Brian Star.
The other nine main stars serve as the centers of the nine provinces, respectively: Chloe Star, Willton Star, Alpha Star, Gamma Star, Shelley Star, Pulite Star, Kansas Star, Scott Star, Linsay Star.
Among the ten main stars, O'Brian Star is the center of the republic, though its position is not the absolute center, relatively closer to the Emperor River.
Chloe Star, Willton Star, and Alpha Star geographically lean more towards the center of the republic's location.
The Gamma Province, where Gamma Star is located, lies within an Energy Storm area, rich in energy resources.
Shelley Star and Pulite Star were once fiefdoms of the Silver Star Empire's dukes, later becoming territories of the O'Brian Republic.
