I don't have a problem with these soul-transmigrates-into-another's-body/MC possesses another person's body scenarios, but they do tend to drag out the revelation to the other characters (IF they ever reveal) that the main character is really someone else and the person they know is dead; "soul swap" or whatever. I hope she can reveal it, and reveal it relatively quickly at that (though currently that would work against her).
Otherwise i like how her eyes have been drawn. She looks kinda evil lol