Nan Qiyue transmigrated into a novel as the villain. After being kicked out by the Nan family, she stumbled into the Han family as an infant nanny for an annual salary of 200 million won, and unexpectedly discovered that she could understand baby talk. Relying on this foreign language, she coaxed the young master who refused milk, exposed the sleeping pills in the milk powder and the conspiracy to steal the child, saved a choking baby girl, debunked the Shen family's child-rearing bad habits that suppressed nature, and even helped the young master's mother overcome postpartum depression, overnight becoming the gold-medal parenting nanny that prestigious families in Seoul fought and begged to hire.