Sent on a deadly mission to assassinate the terrifying Dragon King, succubus Seraphina is shocked to recognize his face as the stranger who saved her years ago. Hiding inside a stolen princess's body, she volunteers as his sacrificial bride despite rumors that he kills every woman he touches. As an intense passion ignites, Seraphina uncovers his dark secret: he was cursed for saving her, and he will die unless she can make him fall in love.