Correct me if I'm wrong.
Number one. Shenyou's the big princess and daughter of the ex-empress that gone crazy.
Number 2, in that war where shenyou and the others wore that green suit/cape, someone targeted her right?
But... I think, the target was supposedly the boy with violet hair and eyepatch. Coz he's a prince... I remember him saying "there's something in the kid's eyes."