Lin Sanwei is a young cook with no ambitions. He opened a small "Sanwei Herbal Diet Shop" in the old street in the south of the city. Everyday life consists of buying vegetables, making soup, and taking care of the health of the neighbors. Occasionally, people complain, "Your soup is too vegetarian." His only asset was a rotten fragment of "Hundred Flavors of Medicinal Diet" he inherited from his grandfather - strangely, as long as he smelled the ingredients, all kinds of weird recipes would pop up in his mind. When the store almost couldn't survive, he cooked a bowl of "reviving soup" and saved a bald man who had fainted after taking fake health pills. From then on, more and more people lined up at the door of the herbal diet shop, and troubles came one after another: Internet celebrity masters who relied on "fairy powder" to swindle, chain medicated diet shop owners who promoted "bitter melon capsules" as a panacea, and groups of catering scammers who bribed the judges... Lin Sanwei was forced to start a fancy anti-counterfeiting journey: Are you making a fake elixir? I make real soup; you buy judges? I made the judges drink until they were begging for a rematch; you said your family's secret recipe? Then I can expose you on the spot with a piece of ginger. While "extending life" to the deceived people, while making the neighbors have stomachaches with laughter - this is the daily life of the master of medicinal diet. But he had a vague feeling that the missing pages of "Hundred Flavors of Medicinal Diet" seemed to hide a bigger secret.