The fried dough sticks of Li Dai, the owner of the soy milk shop, can evoke the dusty "breakfast memories" of diners, and a bowl of tofu curd is full of steam, bringing up fragments of the past. However, the price of this gift is that Li Dai is gradually losing his basic sense of taste and can only rely on the "taste compensation" system - observing the reactions of diners to season. When the taste in memory cannot be perfectly reproduced due to emotional filters, he teamed up with a documentary director to turn individual taste memories into a "living archive" of urban changes, creating a unique museum that records the taste of time amid neighborhood fireworks. Salty and sweet are all in history, but the taste in this world is unreal.