Calladia Cunnington knows she's rough around the edges, despite being the heir to one of small-town Glimmer Falls' founding witch families. While her gym obsession is a great outlet for her anxieties and anger, her hot temper still gets the best of her and manifests in bar brawls. When Calladia saves someone from a demon attack one night, though, she's happy to put her magic and rage to good use . . . until she realizes the man she saved is none other than Astaroth, the ruthless demon who orchestrated a soul bargain on her best friend.