Eri is an orphaned, abandoned on the steps of a church. Once she was mature enough, she fled the church and became a leader of street kids. The Intelligence Agency of the Government Forces noticed her combat skills and recruited her. She went on to receive special spy training for those with special talent and successfully completed a number of missions as a first rate agent. But Eri, weary from the series of missions involving assassinations and plots that took a hard toll on her conscience, requested to be transferred to the Special Ops Squad S.P.A.R.R.O.W.S. Her request, which normally would go ignored, was specially granted given her achievements and superior abilities. She exhibited her abilities perfectly in the suppression of Morden’s second coup d’etat to stop it in its tracks. For her efforts, she received a promotion to sergeant second-class.