Duke Zhen Guo, Cheng Shiyuan, simply by looking at Cheng Guang's eyes, could imagine what Cheng Guang was thinking at the moment.
His heart was filled with bitterness.
The Devil Emperor could be said to be the strongest combat force among all of the Devil Clan within the Eight-layered Devil Realm.
If it were a real battle with swords and spears, he would still have a chance to kill a Devil Emperor and obtain the Devil Dan within it.
But in the Border Area battlefield, existences at the level of the Devil Emperor and Sky-Man would not easily take action, only in moments of critical crisis or when they had to step in would they do so.
Other times, they would have their subordinates fight.
Since Duke Zhen Guo, Cheng Shiyuan, had been stationed at the border, the Devil Emperor had rarely appeared. Clearly, the other side also did not want to come into direct conflict with Duke Zhen Guo, Cheng Shiyuan, a Sky-Man of his stature,
