Erin Ferro was a force sensitive human born on the planet, Kylaan. From a young age, Erin learned both the light and the dark side of the force. When she was 16, Erin constructed her two yellow-bladed lightsabers and decided to dedicate her life to protecting her homeworld. After Emperor Palpatine's death at the Battle of Endor, Erin was attacked by the Sith imposter Darth Terren. After slamming her into the mud-covered terrain, Terren made the fatal mistake of calling Erin puny and incompetent. Erin then lashed out and decapitated Terren. Erin then discovered that Terren had slaughtered many innocent civilians on Kylaan. This broke her spirit and caused her to go into exile.