Traitor Princess, Assassin Saint

One criminal mastermind. One monstrous assassin.
Princess Annara has been plotting revenge on her father for eight years, ever since he exiled her from the Royal Palace of Archon. Now, conveniently, he wants her back in the palace. He hasn’t had a change of heart; instead, he promised her to a powerful foreign assassin in order to pay his debts. To anyone else, the situation might look bleak. To Annara, it’s an opportunity.
If she gets close to Senne, Annara will learn the secrets of the world’s most powerful assassin. But as she gets to know Senne better, her own feelings threaten to get in the way of her ambitions. Can Senne and Annara sort out their feelings for each other, or is their story destined to end in tragedy?