Spoiled pretty boy, Valentino, a revered fire mage of singular talent, finds himself pressured into a political marriage with a sadistic noblewoman he barely knows. He's desperate to find a way out, even if it means leaving his gilded life in the spotlight behind.

Brand, a mysterious roguish vagabond, approaches Val and charms him into a deal: he will help him escape his problems in exchange for his assistance in breaking a vicious magical curse. What that curse entails is only revealed in the light of the full moon. Is Brand really who he says he is?

What begins as a romantic runaway adventure soon turns out to be much more than they bargained for. It seems that Valentino's magic isn't worth as much as he thought when it comes to dealing with a willful demon, gunslinging bounty hunters, and his own fickle heart. He might be falling in lust with a monster, but will he sell his very soul just to run away from responsibility?