Qi Yan hides her true identity, wishing only for her daughter, Mu Xingrou, to live a simple and happy life like an ordinary person. However, her scumbag son-in-law, eager to climb the social ladder, is persuaded by the daughter of the Minister of Revenue to send Mu Xingrou to be humiliated by the son of the Grand Secretary. Upon learning of this, Qi Yan rushes to rescue her daughter and, in the process, uncovers the Second Princess's plot to seize the throne. She takes back the fallen city and ushers in an era of peace and prosperity for the nation.