Hearing what Ye Chen said, even Niu Qingshan could not help but look at Li Xuanji!
Although he was the Dragon King of the Dragon Soul, he only knew that there was the Celestial Master Hall above him. However, the details of the Celestial Master Hall were classified secrets.
"Speaking of Longevity Sword, I still need to introduce the Secret Bureau to you two."
Meeting their gazes, Li Xuanji sighed softly, "In the past, the Great Ancestor felt the astonishing power of the cultivators and was worried that the internal peace would be affected if the cultivators caused trouble. Moreover, he was afraid of the existence of Shang Santian, so he secretly set up a mysterious department, and this department is the Secret Bureau!"
Ye Chen and Niu Qingshan were surprised to hear that.
Who would have thought that the Secret Bureau was created by the Great Ancestor!
