Responses
The original Realiana is not the modern Eunha. Eunha was "casted" to be Beatrice by the goddess, and this is why she can understand the ancient language for example, because Beatrice did go to the academy. But the original Realiana meet the dark magician and learn her destiny (be murdered) so she make her soul and Beatrice soul (Eunha) swap bodies. Sorry, I can't explain it better.
Wait a min... does that mean that it was the original Beatrice who is in raeliana's body now. So how did the original raeliana's soul met the dark magician as she is a person in the modern world ???