Lin Xiaole, an ordinary young man who delivers food in a big city, his biggest dream is to save enough money to open a canteen in his hometown. His only "specialty" is that he can smell "smells" that others cannot smell, such as the "smell of decay" of a dying person on someone's body, or the "musty smell" of old resentment in a certain place. He always thought it was rhinitis. Until he was cornered in a dead end by an old Taoist priest who exuded the "thousand-year-old smell of rice dumplings". The other person gave him a shabby "Incense Book" and said: "The ninth generation, it's your turn. If you don't come, our lineage will really be extinct."
