Transmigrator Liu Xiaoyu only wants to run his rice shop and live a quiet life. But the white fox he saved eighteen years ago returns in human form, insisting on repaying his kindness.
The fox demon Hu Feifei is beautiful and alluring, but knows nothing about human ways. As soon as she appears, Liu Xiaoyu's wife, Shen Chunniang, mistakes her for a homewrecker. To make matters worse, his brother-in-law Shen Sangui's gambling debts bankrupt the Liu family, leaving Liu Xiaoyu to start over by selling rice from a shoulder pole.
Hu Feifei can tell good grain from fake, Shen Chunniang can keep the books and give people a tongue-lashing, and Liu Xiaoyu knows how to run a business and set rules. Amid all the chaos, the three of them turn a single sack of rice into a grain-trading empire.
A crooked grain merchant hoards supplies? He sells rice at fair prices.
A local strongman cuts off his sources? He helps farmers.
The imperial court can't solve a grain shortage? He mobilizes trade routes across the land.
Years later, Liu's Grain Shop has spread across the Great Wu Dynasty, and Liu Xiaoyu has finally become the greatest rice merchant in the land.
There's just one thing he still can't figure out: did this fox demon come to repay him, or to make him rich?