The space dominated by Kusari is very oriental and also has very fertile planet
such as the Planet Honshu. The Kusari tolerate hardly strangers in their room, but the government established a early stations to collect the strangers. The best example here is the station Roppongi in New Tokyo Station or the Deshima in Shikoku. The bounty hunters have a hard time in Kusari, they are tolerated only in Shikoku on the station Deshima. The forwarders have other colonies in New Tokyo Narita fly all the outpost where the commodities are then reloaded onto Kusari own forwarding vessels.
^ this Article was in German lol, couldn't find an english version. Xenophobic RP was present in Vanilla Kusari, which lets me think that it could've been run by an Emperor (allthough Japan has a very xenophobic Culture, so nothing new).
additional to this, if you search for Freelancer Vanilla Kusari. Nowhere you find "Kusari Empire" but only "Kusari". If you search for Kusari Empire, you only find Discovery articles.
Each house exhibits the culture of its terrestrial ancestor: Liberty of 1920s United States, Bretonia of Victorian era United Kingdom, Kusari of Shogunate era Japan, and Rheinland of Second Industrial Revolution Germany.
Kusari of Shogunate Era, there was a Shogunate vs the Emperor battle in History. But I don't know now, which one... It can be that for a while Kusari was the Shogunate until the time Nomads started infecting High Political Figures, it could be that Kusari turned then into an Empire which the Blood Dragons couldn't allow to happen and revolt.