The Zi Stellar Kingdom, they were the strongest Stellar Kingdom in this area.
This wasn't something that they declared themselves, but rather something that was recognized by all the Stellar Kingdom in the area.
That was because out of all the Stellar Kingdoms here, they were the ones that had the strongest troops, strongest experts, most resources, greatest population, and most land.
In any way that a Stellar Kingdom could be ranked, they were the top out of all the Stellar Kingdoms in the area.
So if an envoy from the Zi Stellar Kingdom was coming to the Mu Stellar Kingdom, it was a very big deal.
