Charm Wars. Charm Wars, #1

Welcome to Caldon, a land of mages and magic, where the noblesse possess massive political and magical power and destroy anyone who threatens the noblesse way of life-especially the commoners. Rill Larkin, the son of a commoner blacksmith, has high ambitions. To be a mage, join the exalted ranks of the ruling noblesse, and establish his own noblesse family. Defying both the system and his family, Rill becomes the apprentice of Deuth Estati, a powerful archmage.
But appearances deceive. As training progresses, Rill learns of decades-long secrets and manipulations that threaten his dream. And Deuth might not be as benevolent as Rill thought. Alyse Dejune despises magic, even if she does belong to one of the oldest and most powerful noblesse families in Caldon. The deceits and treacheries of noblesse life and the loveless marriage alliances among the noblesse families disgust her.
Her family however has high expectations: that she fulfill her role as a noblesse girl by marrying Troy Estati, an arrogant, selfish noblesse boy she does not love. And Alyse harbors a secret-the potential to become one of the most powerful mages in generations and wield forbidden magic-that, if revealed, could mean her death. In this deadly game of ever-shifting alliances, where the state wages perpetual war against an ancient enemy, Rill and Alyse are thrown together in a land where magic is failing.
And as greedy noblesse families raid surrounding family compounds for powerful charms, Rill and Alyse are left standing at a terrible crossroads.