Mu Nianshu has the extraordinary gift of understanding baby talk. She joins the Qi family as a nanny and discovers the thoughts of An'an, their young master who cries incessantly. As she solves one childcare challenge after another and uncovers misunderstandings from the past, she helps the child reunite with his birth mother. She also uses her abilities to help more infants with special needs. From being an unknown caregiver to launching public welfare projects, she heals the children through love and listening, while healing herself along the way.