Ye Xiao knew that Zhao Yi would flee. When Zhao Yi first had the idea, Ye Xiao already knew, but he just sneered and didn't do anything. If he wanted to stop Zhao Yi, he could simply make a casual sword move to stop and kill Zhao Yi.
Ye Xiao didn't do it.
After all, he needed somebody to tell Ye Yunduan about the Monarch's Hall declaring war against the Great Ye Army.
Zhao Yi was a good choice.
It was about time to start the war against the Great Ye Army now!
As Zhao Yi escaped, nobody in the Great Ye Army wanted to continue the fight anymore. They all fled. However, Ye Xiao only needed one man to be the messenger, so he wouldn't let these men leave. The Stars Sword kept shining. Starlight splashed in the area. Within about thirty seconds, over one hundred men of the Great Ye Army died together!