Returning to the Great Yun Nation was also the wish of most of the citizens of the Black City Kingdom. The new emperor's actions were naturally supported by the citizens.
However, Lian Xin was unwilling, because after returning to the Great Yun Nation, he would no longer be the God of War, and he would be of no use.
The new emperor was unwilling to be manipulated by Lian Xin and removed his military power.
He thought that Lian Xin, who had lost his military power, would behave himself. He did not expect him to secretly leave the Black City Kingdom and pretend to be an envoy of the Black City Empire when the new emperor sent an envoy to the Great Yun Nation.
Nan Xing had once thought of sending someone to inform the Emperor of the Great Yun Nation or Jiang Ying, but after Lian Xin found out, he could kill the people he sent every time.