Among the wide variety of Armors, there are seven unique units that are far more powerful than others, known as "The Original Seven Armors." They are named after the seven days of the week and are piloted by people who are picked out for the task for each generation, known as "The Original Seven". Many of these riders are given special implants in order to be able to control their Armor, but some of them are born with this ability and are considered more important. The Original Seven Armors also differ from ordinary Armors because they are contained in crucifix-shaped satellites in space when they are not in use, one station for each of the Armors. Here, they are refueled and repaired and can be summoned down to their owner at their leisure. When the Armor is summoned, it takes the shape of a giant version of a certain weapon, typically the Armor and its rider's weapon of choice, but in battle they change into a humanoid form. All Original Seven units have a blue-black liquid called G.E.R. fluid that permeates the entire armor. It runs through the body of the mecha like blood, seeping out of any wounds that the armor sustains in combat. It also fills the cockpit, able to accept neural inputs and impart healing abilities to the pilot's injuries when they are connected. The normally blue-black flow of G.E.R. fluid in the cockpit becomes a bright, iridescent white if a pilot is especially in tune with his or her Armor.