True Wings Clan of the Archangel series by Gracie Mitchell
When Atarah, youngest child of the Clan of Archangel Michael, attends a summit meeting, she never imagined her whole life would change. Chaos and fighting is all that she has known between the seven Archangel clans and now more than ever, she craves for a change. While fighting against demons, who want passage into the human world, Atarah tries to mend the bonds between the clans and her own family. Thrusted into the aristocratic world of Archangel families, she has to learn quickly who she can trust, especially with her heart.