Created by Brawndo
Created by a villainous alien invader masquerading as a superhero, Miranda was designed to be the greatest PR agent ever known. Though Miranda believed she was human for most of her existence, she's actually a nanobot combat platform, a sapient swarm of microscopic robots that can take any shape.
She runs a PR firm solely dedicated to superheroes, and has many contacts and friends in the superhero "industry" as a result.
When Dr. Tachyon's villainous plans came to light, his last act before fleeing Earth was to remove the mental blocks preventing Miranda from acknowledging her true nature, thinking this would cause her to join his side. Instead, her time spent as a human instilled in her a sense of empathy and justice, leading her to rebel against him and use her abilities to fight crime, using the resources of Tachyon's massive super-science corporation.