A love that happens only once in a lifetime is a form of pure emotional vegetarianism. Tang Shizhe (played by Zeng Jiang) is a renowned chef in Hangzhou City, famous for his cooking skills and also very strict with his two daughters: family dinners on weekends are essential, and the table must be filled with vegetarian dishes. His two daughters, Tang Wa'er (played by Huo Siyan) and Tang Xiaolan (played by Jiang Mengjie), advocate all modern culture and love meat, so they have always treated this family ritual with indifference and have a vague understanding of their own romantic lives. Tang Wa'er is a typical urban white-collar worker, managing a high-end clubhouse and engaged in a relationship with game designer Zhang Quan (played by Lan Zhenglong) in a May-December romance. Zhang Quan is a typical nerd, familiar with a world where "one plus one definitely equals two," but this simple and straightforward rule of the game bumps into obstacles in matters of the heart, leaving him at a loss. Zhang Quan's aunt, Bai Ping (played by Gui Yalei), is outwardly flamboyant and speaks her mind, yet feels lonely and empty inside. Seeing Zhang Quan as her own son, she is eager to arrange a marriage between him and Wa'er and volunteers to help in Hangzhou. Unexpectedly, the process is like Liu Laolao entering the Grand View Garden; the main issue isn't resolved, but it stirs up a turbulent situation, complicating Wa'er and Zhang Quan's relationship even further. As Zhang Quan and Wa'er face a breakup, Tang Shizhe suddenly announces he will close the "Good Feng Shui" restaurant. Bai Ping accidentally joins the last dinner prepared before the restaurant's closure. When the final dish is served, it unveils a long-buried story from more than half a century ago, breaking everyone's hearts. Is love merely a decorative accessory or a lifelong craving? In this vegetarian love story, several young people discover their own love and their own dish...