"Ella is the daughter of Hannah, a royal nurse. Fourteen years ago, her mother was shot and killed on the Laurent family's private hunting grounds by an eight-year-old Vivian. Duke Henry of Laurent covered it up as a hunting accident.
Because Ella is identical in appearance to Vivian — the girl adopted by the Laurent family — she was forcibly kept in the ducal estate as a body double. For fourteen years, she has been injected with a slow-acting poison called the ""Stabilizer,"" forced to stand in for Vivian at every public appearance: winning shooting championships, competing in National Day mounted archery, writing speeches, and answering questions at the royal selection audition. She has endured every kind of abuse and control."