Chu's Incense Hall successor Chu Wantang suffered her fiancé Sheng Huaijin seizing the incense formula and harming her father's life, changing her name to Xu Muyu to infiltrate the Sheng family as a housekeeper for revenge. She discovered that Sheng Huaijin used medicine to control his wife Wen Ruan long-term, and the false testimony back then was also caused by coercion. The two put aside their grievances and formed an alliance, uniting everyone to collect evidence of crimes, exposing all the truth at the tenth anniversary press conference of Huaijin Incense Industry, the villains brought to justice, the two breaking free from the cage, and Chu's Incense Hall regaining new life.