Archdemon

Cheryl is murdered. And the afterlife is out to kill her again. When Cheryl is killed, she ends up a guardian angel, tasked with protecting humanity from the demons who feed on humanity. But the angels are on the verge of being wiped out, a traitor threatens to crush the stability of the angels' order, and their top suspect is Cheryl herself. With only three months to save a marked soul or have her own soul pass on, Cheryl has to find out how to survive in a world falling into disorder-and who she can really trust.