Kira knows exactly what she needs to win back the man who left her: better magic, better judgment, and possibly an entirely new personality.
The magic is easier.

Determined to become the polished, irresistible witch her ex always wanted, she walks into an occult shop looking for ingredients for a glamour spell and finds something considerably more dangerous waiting among the cursed relics.

Astaroth has spent centuries studying desire, temptation, and every foolish thing people will do for love. Kira’s plan to transform herself for a man who already walked away should bore him.
Instead, it amuses him enough to interfere.

He offers to teach her what attraction spells cannot: how to command attention, understand desire, control her magic, and recognize exactly what another person wants. Their lessons begin with glamour and strategy, then drift into far more intimate forms of magic as Kira discovers that the demon helping her reclaim one man may understand her better than the man she is trying to win back.

Astaroth knows this arrangement has an ending.
The warlock returns. Kira gets what she wanted. Everyone walks away satisfied.
At least, that was the plan.

Because when her ex finally asks for another chance, Astaroth discovers that centuries of temptation have taught him almost everything about desire except what to do when he wants someone to stay.

She became the one rule he broke.

Coming this October