When Su Rong set foot in Nanchu, she took control of thirty thousand troops stationed at the Nanchu border. She brought with her fifty thousand troops. Now, Jiang Zhu and others, with their two hundred and eighty thousand troops, naturally couldn't move fast.
An army on the move, given its vast size, always had to proceed with caution, making its march slow.
Ning Ze was anxious, but he knew that Jiang Zhu made sense and had to drop the issue, urging him to speed up the troops.
Dawei's secret agents, with Xie Yuan, moved from Nanchu Capital to the border of Dawei without interference from the fully mobilized Nangong Family, and thus had an extremely smooth journey.
Dawei's secret agents weren't worried about anyone other than the Nangong family stopping them. As long as the Nangong Family didn't intervene, they could safely transport Xie Yuan to Dawei.