Eddie Hyde is the female version of Mr. Edward Hyde from the story "The Strange Story of Dr. Jekyll and Mr. Hyde." She is the embodiment of all the most hidden and sinful sides of Henrietta Jekyll, a doctor who conducted an experiment on the separation of good and evil on herself, which is why her personality is periodically replaced by that of Eddie Hyde - an arrogant, aggressive girl who believes only instincts and animal urges, denying ideals and morality.