After serving three years in prison to cover for her father's hit-and-run crime, Adeline struggles desperately to afford her mother's life-saving hospital bills. Desperate for work, she applies as a wet nurse for cold, ruthless billionaire Jenson’s infant son Noah, who suffers from an ultra-rare fatal gene disorder that only her breast milk can treat. Jenson marries her solely to harvest her antibodies to save the baby, hiding a cruel secret: only one of them can survive. As she slowly warms to the lonely little boy, Jenson unexpectedly falls for her quiet tenderness. Vicious rivals plot to kidnap and kill her, while a hidden medical conspiracy threatens all three. Torn between a deadly bargain, hard-won family love, and a cruel marriage built on sacrifice, Adeline must fight for her life, her sick mother, and the child she's grown to love. Will she break free from this doomed deal, or find a way to rewrite their tragic fate?
