Fang Ruoqin's son, Shen Qi, has always adored his wife, Song Wanning. When Song Wanning becomes pregnant, Shen Qi specially hires Lin Yuru, a fifty-year-old experienced live-in nanny, to care for her with the utmost attention. Unexpectedly, as soon as Fang Ruoqin returns from abroad, she insists on dismissing Lin Yuru on the grounds of a peach-blossom mole on her face. Shen Qi knows that Lin Yuru is diligent and reliable, caring for Song Wanning in every possible way, and questions the reason. Even Song Wanning is completely baffled. But Fang Ruoqin is adamant, even willing to quarrel with Shen Qi, insisting on sending Lin Yuru away before she will reveal the hidden truth behind it all.