Lydia, the werewolf queen, breaks her three-hundred-year seal after a mortal’s fatal fall. Her wolf core accidentally lands in the body of human CEO Ethan.To regain her power, Lydia moves in with Ethan disguised as his son, alongside tree spirit Orson. She initially steals kisses to siphon his power, yet slowly softens under his genuine warmth.Beset by ancient foes and family schemes, Lydia protects Ethan with her werewolf instincts, while Ethan uses human rules to clear obstacles for her.In the end, Ethan drinks a core-severing potion to restore her power. Lydia slays the mastermind, revives him, and the two start a new life beneath the full moon.