The profound voice, like thunder from the Nine Heavens, came from nowhere, shaking the very rules of the Great Dao that existed in the obscurity.
As the voice resonated, the figure of the old man in the plain robe had already appeared in front of Long Yan, Zhan Wushuang, and Little Demon; even the Covering Heaven Demon Emperor did not know how he had appeared.
The figure in the plain robe was an elderly man, his face gaunt and his body stooped, evidently an elderly man in his twilight years. He bore no fluctuations of breath, indistinguishable from a common elderly man.
At this moment, everyone's gaze was fixed on the old man in the plain robe, and without a doubt, this elderly man was a strong one, a super strong one.
"Young Master, this old slave has arrived late!"
The old man in the plain robe, ignoring Long Yan and Little Demon, knelt on one knee before Zhan Wushuang, his expression extremely respectful.