Sarah Edwards was a human Insurrectionist. Born into a United Rebel Front family, at the age of sixteen, she became a fighter of the URF. After having been studied by her superiors, Edwards was chosen to become a rebel plant in the United Nations Space Command. Although she resisted the idea initially, the other Insurrectionists convinced her to do so by regaling her with horror stories of being a rebel infantryman, that her talents would be better used as a plant, and multiple other methods. As a result, she went through the admissions process, and was appointed to Luna Officer Candidate School in 2524.