The case of the "evil girl of the century" Ando Kui and the poisoning of her lover shocked the whole country, which also opened the prelude to the story of the second season. Gu meimen, who still did not change her nature, risked universal condemnation to serve as Guihe's lawyer to defend her innocence, but was intercepted by Yusheng Qingshu, a new prosecutor who had practiced under his door. After a fierce court trial and defense, Ancient meimen suffered an unprecedented defeat. After that, Yusheng, who dreams of bringing happiness to all, resigned from public office and opened a law firm instead. While Gu meimen and Dai zhenzhizi are committed to lobbying Guihe to appeal, in order to make up for the expenses of the office, they have to take over strange and difficult small cases such as Lori women cheating otaku, genius suing slander, women's cosmetic divorce, neighborhood disputes, intellectual property infringement, polygamy competing for custody and so on. In this process, Yusheng and Gu meimen are both enemies and friends, and grow together in the competition. At the same time, Yusheng has become another difficult opponent of Gu meimen after lawyer Miki.