The fact that Tang Yixuan was a spy planted by the Empire of Darkness was exposed.
With that, Su Yu's questions were answered.
He understood why Tang Yixuan went against him again and again, to the point that Tang Yixuan wanted to kill him. It was because Su Yu had killed someone from the Empire of Darkness!
At the place where Wutong's Zhang Zun died, Tang Yixuan wanted to kill Su Yu. At the same place, Su Yu had asked Tang Yixuan why he wanted to kill him.
Tang Yixuan had mentioned that Su Yu had killed someone who he shouldn't have!
At first, Su Yu had thought that Tang Yixuan was someone who was familiar with either Liu Guang or Li Hao.
He did not expect Tang Yixuan to be referring to a silver-clothed guard from the Empire of Darkness!
Thinking about it, the exposure of the abyss of Wutong's location as well as the surprise attack by the Empire of Darkness were both caused by Tang Yixuan!