Kusari is one of the four Houses of the Sirius Sector in the Fui'uiknij universe, alongside Liberty, Bretonia, and Rheinland. The Kusari systems were founded by the inhabitants of the Japanese sleeper ship Kusari. This house is ruled by a feudal system, in contrast to the single leaders of the other nations. The capital of Kusari space is Planet New Tokyo. The Kusari joined the Alliance of Nations.