Since he reached the Soul Emperor level, Chu Mu was eager to take advantage of his momentum and used the Emperor-Level Wood Element Soul Crystal he had obtained from Sky Listener to directly strengthen the Demon Tree Warrior to the Soul Emperor level.
Chu Mu's Soul Power was abundant, and as he had just broken through to Soul Emperor, this abundance had a special lasting effect, so Chu Mu's consumption would not be so fast.
At the moment, Chu Mu still let Mo Ye guard him as he began to enhance the Demon Tree Warrior.
At the Soul Emperor level, Chu Mu's Soul Sense was stronger. He could easily mobilize the energy inside the Wood-element Soul Crystal, and since the Demon Tree Warrior had a single attribute, the strengthening process was much easier.