Everglow

Unsure of anything except her need to redeem herself after getting her father killed and ripping her family apart, Rayna joined the intemption, the army dedicated to killing the beasts that plague her homeland and killed her father, the Sashee.

After a sparring match that showed her scars and birthmark to everyone present, she's taken away from the camp and doesn't see anyone for days, until someone comes for her...