Zhou Shen and Zhou Che, leading two hundred thousand troops, rested for a day at Heiya Pass. On the second day, at Su Rong's command, the army left Heiya Pass and headed for Dawei.
Dawei Crown Prince, Yuan Zhao, was unaware that no sooner had he left, Su Rong left Heiya Pass three days later, not returning to the Nanchu Capital, but waiting for the arrival of Daliang reinforcements to follow him and attack his Dawei.
After he had led his army back to Dawei's border, even before he could command someone to explore Dawei's situation after he left, he received an urgent report sent by Helan Ying.
