Demon Seer

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.

The only thing Ember wants out of this life is to kill Lilith--the demon that's been outrunning her for the last four thousand years.

Well, that and to spend some quality time with the 3 men she has in her life.
Ryan, Jake, and Carson give her everything she needs in the bedroom--and they help her kill demons. They make an awesome team.
But when they save a human from certain death at the hands of a demon, Ember has no choice but to take Zach into her home to keep him safe. He's annoying, immature, and well, human--at least, she thinks he is.
However, the more time she spends with Zach, the more she begins to realize he's not really a human at all. He's a Seer.
And he might just be the key to her catching--and killing--Lilith at last.
Will Zach turn out to be the weapon she's been looking for, or will Lilith continue to evade her for another thousand years?

Ember's Flames is a reverse harem romance series with lots of steam. You'll need to read the complete trilogy to reach full satisfaction.