Although Jiu Si let the grain through his gate, he placed a tracker so that Zhou Ye and his troops can find it. He then heads to Heifeng Fort to save Yu Ru, who finds out Shen Ming is actually a good person whose actions are for the benefit of the people. Jiu Si’s bluff pays off when he negotiates with the bandit leader of Heifeng Fort. His success is rewarded. (Source: frankly at MyDramaList)