Vassals are those humans from other planets allowed to live on the planet Mars. These vassals are all directly nominated by a citizen, who then has direct authority and responsibility for them for the duration of their stay on the planet. These people are servants, laborers, skilled workers, or even simply companions of their benefactors. A vassal may come to the planet for any number of reasons: some come to work at the fantastic restaurants, theaters, Cloud Nine, or anywhere else requiring great expertise; some come to work at more labor intensive jobs, either to get away from their home planet or to attempt to petition for citizenship during their stay. The actual arrangement with their benefactor is entirely up to the contract they sign when the pair registers the vassal into the official record of The Council House.