Two Guards and A Broken Girl

Ameren's current philosophical debate is that if you have a crush but you don't know you have a crush, then is it really a crush?
Ameren want's nothing but to be normal. One day during an encounter with a mysterious magical creature her wish comes true. Well kinda.
Instead she gets sent to an school for assassins, where she meets the handsome Rowan Blackthorn.
An evil is in the school and when their situations get dire they are forced deepen their bonds with each other.