The Salvator Faction
After the Miltian Accident, her situation was unknown, although it is likely she was kept and raised by Yuriev's co worker from the Institute, the Salvator Faction until his return, as hinted by her wearing the Institutes's outfit at the moment of Yuriev's return. She also contacted him once he took over Gaignun's body, and could fill him with information, making it very likely she had a high post, even maybe like the one of Pierr Ruryk.
During those years, nothing else than what Yuriev had programmed for her to see was taught to her, furthening the misunderstood factor.