C329 Advancing to the Fifth Level of the Martial Emperor Realm

Mu Yun tried a few times but to no avail. Every time, the grey gas seemed to be blocked by something invisible, unable to extend outwards.

"What should we do?" Mu Yun was very anxious. Although the palm on his head was very slow, but he knew that Xuanyuan Po's speed didn't change at all. He had entered a strange state on his own.

He did not know what this state was