They even understand the eating habits of Yan County thoroughly.
Since Lu Chen had Rain-listening Pavilion procure large amounts of wheat in the Great Jue Dynasty, he promoted the making of steamed buns and mantous. Although the traditional staple food in North Country remained rice, the shops in Yan County were already selling buns and mantous, and the common people had grown accustomed to eating them.
To avoid alerting the Great Jue Dynasty to the fact that Rain-listening Pavilion was an intelligence agency of the North Prince Mansion, the Pavilion adopted very complicated procedures when purchasing wheat from the Great Jue Dynasty. Moreover, when transporting the wheat out of the Great Jue Dynasty, the country levied a significant amount of tariff.