C1046 The Great Sant'esper Who Was Scared out of His Wits
Mu Qing was not an expert who specialized in cultivating the body, he cultivated energy, which was Demon Qi.
However, because of the Ancient Tree of Death, every time his Cultivation leveled up, the Ancient Tree of Death would have feedback.
It could be said that Mu Qing's physical body and soul had completely relied on the Ancient Tree of Death's power to forcefully improve them