Love that only happens once in a lifetime is a pure emotional vegetarianism. Tang Shizhe (played by Zeng Jiang) is a well-known chef in Hangzhou. He not only cooks delicious dishes, but also has very strict requirements for his two daughters: family dinners every weekend are essential, and vegetarian dishes must be placed on the table. The two daughters Tangwaer (played by Huo Siyan) and Tang Xiaolan (played by Jiang Mengjie) advocate all modern culture. They never have a perfunctory attitude towards this family ritual, and they know only a little about their own emotional life. Tangwaer is a typical urban white-collar worker who runs a high-end club and talks about a sister-brother relationship with game designer Zhang Quan (played by Lan Zhenglong). Zhang Quan is a typical otaku. The world he is familiar with is a program world where "one plus one will definitely equal two", but this simple and direct game rule hits the wall everywhere in his relationship, making him at a loss. Zhang Quan's aunt Bai Ping (played by Gui Yalei) looks coquettish and speaks without restraint, but in fact she is lonely and empty inside. She regarded Zhang Quan as her own son and wanted to arrange a marriage between Zhang Quan and Wa'er, so she volunteered to go to Hangzhou to match them up. Unexpectedly, the process was like Granny Liu entering the Grand View Garden. She did not get the deal done but instead caused a stir, which made the relationship between Wa'er and Zhang Quan even worse. Zhang Quan and Wa'er were about to break up, and Tang Shizhe suddenly announced that he would close the "Good Feng Shui" restaurant. Bai Ping accidentally attended the last dinner prepared by Tang Shizhe's restaurant before it closed. Unexpectedly, when the last dish was served, it revealed a past that had been sealed for more than half a century, which broke everyone's heart. Is love an optional embellishment or a lifelong desire? So in the face of this vegetarian love affair, several young people also found their own love and their own dish...