Wrong Side of Heaven

Epithestia Azrael, heiress to one of the seven Arch Angel clans and daughter to one of the fiercest generals in The Divine, trains tirelessly to lead an assault against demons. However, after she's betrayed and nearly killed, she soon realizes that perhaps she's more than a normal angel, and that the "war" she's been training to fight in was all just a lie. This was no war... This was a genocide.