Xue Ji's expression changed dramatically, this question clearly touched his bottom line. The passage seal of the South Wilderness Spirit Realm was a major secret among the clans of the Demon Abyss. As a Void Refining Demon Ancestor, he naturally knew some inside information, but such confidential information was absolutely not something he could freely divulge.
Xue Ji swallowed his saliva, looking at Li Mu carefully said, "Sword Immortal Li, I really cannot answer this question. The passage seal of the South Wilderness Spirit Realm is our Demon Abyss's highest secret. Although I know some, there is a Divine Soul restriction, I really cannot reveal it."
"Really unwilling to say?" Li Mu was clearly dissatisfied with this answer, the Spirit Sword in his hand once again glowed with Sword Aura, as if it could fly out at any moment.
