From my factbook:
The Imperial Throne Room of the UNE. Meetings of state are held here in the presence of the Empresses.
The UNE is primarily governed by the Empresses, of which there are always two. The current Empresses are Cure II and Aurora I. The Empresses govern under the authority of the Arch-Empress, Star Mystiina I, who is the Supreme Head of State, and an incorruptible overseer. The Empresses have numerous advisers and officials, including Lady Qin, the Chief Imperial Adviser, Director of the Qin Lan Agency and Commander and Chief of Police, Imperial Admiral Xia, the commander of the UNE's military forces, Lord Aurion, the Imperial Treasurer, and Lady Tez, the Chief Scientist.
High Sectoress Cersolla, Supreme Councillor of the UNE.
Second to the Empresses is the Supreme Councillor and High Sectoress, Cersolla. She may be empowered to act on the behalf of the Empresses when needed. Cersolla leads the Supreme Council, a political body akin to a parliament. The Supreme Council is responsible for enacting the will of the Empresses, ensuring the law is upheld, and keeping order throughout the UNE's vast territory.
The Supreme Council consists of Councillors, High Councillors, which are held in higher esteem then regular Councillors, and whose votes carry additional weight, and the Vice Councillor, who is second to the Supreme Councillor, and carries out her duties in her absence. The Council mostly consists of mortal citizens of the UNE, but also contains members of the House Bringer. At the top is the Supreme Councillor, who may veto any decisions made by the Supreme Council, and who reports directly to the Empresses. The Supreme Councillor also holds the High Sectorate, which is responsible for distributing the UNE's laws to the 1,000 Sectors of the UNE.
In turn, the Sectorans and Sectoresses of the UNE have authority over the galactic governments within their Sector, and the galactic governments command the solar governments. Solar governments hold sway over planetary Great Kingdoms, the head of the solar government is typically the most powerful Great King in the system. Below the planetary monarchs are continental governments, usually ruled by a High King. Lunar bodies are treated as continents of the planet they orbit. Continents are further subdivided into countries, which have more diverse forms of government in relation to the needs of the local population. On Neptumous, the capital world of the UNE, a country typically has a King or some other monarchical rank. Countries are then themselves usually divided into provinces or states, which are often governed by ranks such as governors, premiers, dukes, barons, sovereign princes, or viscounts. The lowest subdivision of the UNE is the municipal governments, which are subject to the provincial or state government. A municipal government governs a city or town, and is concerned only with the most local of issues. Municipal governments are among those that occasionally operate on democracy, which is quite rare in the UNE. Larger city governments may hold sway over smaller ones that are in the immediate vicinity.
The Inner Ring of the capital city of Imperial Oasysii. The 10,000 floor Capital Building houses the Imperial and Arch-Imperial Palaces, the Supreme Council Chamber, and most other significant government offices.
The political centre of the UNE is the planet Neptumous, located in the Mys System, within the Mystiin Galaxy, which falls under the jurisdiction of Sector Primaris. Sector Primaris is governed directly by the Empresses. The capital city of the UNE is Imperial Oasysii, a city that is over 7 billion years old, and was the capital of the Old Oasysiian Empire, and the later Galactian Empire, which were predecessors to the UNE prior to the advent of space travel.