Lin Wantang feels sorry for her biological mother, Zhao Shufen, who lives alone in the countryside. Despite her husband Gu Chengyuan's objections, she brings her mother into their home to help care for their daughter, Xiaoyue. However, Zhao Shufen immediately claims a room for herself, throws her weight around, and ostracizes her mother-in-law, Song Qiuhua. After Song Qiuhua leaves, the Gu household falls into complete chaos. There's nobody to cook, nobody to pick up the child, and the housework becomes a mess. Lin Wantang's career also suffers as a result. It is only when an old medicine bag and a postpartum meal notebook reveal the truth about what happened eight years ago that she realizes she has wrongly blamed Song Qiuhua for years. In the end, she sees her biological mother's selfishness for what it is, apologizes to her mother-in-law alongside her husband and daughter, and learns once again the importance of gratitude and sharing responsibilities.