Father don't cry, Yaya will take you to find treasures! Lin Feng is trapped in life's trough, depending on each other with his four-year-old sensible and well-behaved daughter Yaya. To prop up a piece of sky for his daughter and family, he grits his teeth and struggles, never bowing his head to life. And the thoughtful Yaya turns out to be the big lucky star of the family; her few words full of childlike innocence unexpectedly lead Lin Feng to discover sky-high-priced black wood ear mushrooms and top-grade schisandra sphenanthera! Facing the malicious suppression by the black-hearted merchant, Lin Feng relies on his backbone and wisdom to fight back desperately, carving out a sales channel himself! Watch how the tough-guy milk daddy joins hands with the fairy little cotton-padded jacket, relying on diligent hands and the great mountain's gifts, to make a fortune step by step down-to-earth.