Mulan (played by Chen Xiaoyi) was born in a poor family in Shandong. After her parents died in an accident, her elderly grandfather needed Mulan to take care of him. Although Mulan took care of the elderly meticulously, as time went by, Mulan gradually delayed herself and became an older leftover woman. Nian Chaoyang (played by Fan Lei) had experienced a failed marriage before, and Mulan's kindness and tenderness deeply touched him, so he decided to propose to Mulan. In this way, Mulan brought her grandfather, Nian Chaoyang brought his young son, and the four formed a new family. Who knew that on the day of the wedding ceremony, Nian Chaoyang's ex-wife Chen Yanli (played by Liu Lin) came over and brought a baby girl who was crying for food. Chen Yanli said that the baby was Nian Chaoyang's daughter and asked Nian Chaoyang to take on the responsibility of being a father. In this way, Mulan has another child to raise.