Starting with nothing but a pair of underwear, a young man from Henan travels to the Heavenly Court to sweep up horse manure. He works one day and rests six, and when he brings the manure back to grow vegetables, the crops go wild with growth! Traveling back and forth between the Heavenly Court and the human world, the young man cleans the heavenly stables and accidentally discovers that vegetables fertilized with celestial horse manure ripen overnight and even gain special abilities! The manure of heavenly horses at the Imperial Horse Bureau restores vegetables to their original flavor, while the dung of the Azure Ox at Doushuai Palace makes grain yields soar. The calluses of the Barefoot Immortal and the constipated dog's droppings of the Celestial Dog can even be turned into biological weapons. Think this is a story full of stench? Not at all! He collects peach pits in the Peach Garden to grow celestial peaches and sweeps furnace ash at Doushuai Palace to make ultra-high-temperature steel.