Vicious(Human AU)

In the shadowed halls of the United Federal Defence and Medical Academy, cheerful med student Hayley Marshall is forced to room with the most feared defence cadet: Klaus Mikaelson.
Ruthless. Monstrous. Disciplined to a fault.
Klaus spent five years locked in an asylum, branded a psycho by his own stepfather. Now, the ice in his veins is melting - replaced by an all-consuming obsession. He's falling harder than he ever thought possible, ready to kneel like a penitent sinner at Hayley's feet.
But Hayley despises soldiers. A brutal betrayal left her aunt paralyzed after a soldier she trusted pushed her off a cliff. To Hayley, men in uniform are monsters.
When Klaus discovers the horrifying truth the soldier who destroyed her aunt is his stepfather Mikael their fragile bond is pushed to the breaking point.
She has to survive him.
He'll burn the world to protect her.
In a place built for war, can love redeem the sinner... or will the past destroy them both?