Looking at how Feng Taiji waved his sleeves and just left without saying goodbye, Hong Jiuchen's eyes turned dark and sunken and killing intent flashing within. Only when he stepped out did he calm down.
If it was up to him, he really wanted to kill this person right here.
However, that was only if it was up to him, but it wasn't.
After all, Feng Taiji wasn't really Zong Shou's subject and the entire Cloud World Sword Sect stood behind him!
Zong Shou had many restrictions when he did things every day, numerous problems to handle. They too were the same and they had to worry about many matters.
The Sword Sect might not be able to do anything to Nine Capital Celestial Dynasty but it was extremely easy for them to claim Hong Jiuchen's life.
Moreover, if they wanted to drag the time they had to let this person leave.
When two countries fought, they didn't kill the envoy. They would just allow this person to leave.