Inside the cave, the dark red light of the ore flowed silently, casting a long shadow of Chen Ping, who was sitting cross-legged, on the stone wall.

With his eyes closed, he slowly circulated the Mind Concentration Technique within his body. The chaotic power, like a fine net, enveloped the Yin energy he had just absorbed in his dantian, beginning its final refining.

When those yin energies entered the body, they were like a raging flood, but now they were much gentler.

Under the repeated burning of the Chaos Fire, the violence and decay in the Yin energy were peeled away layer by layer, transforming into strands of pure energy that merged into the meridians and dantian.

Chen Ping’s breathing was steady and long, and with each breath he could feel the power within his body increasing slightly.

But just as he was about to complete the final refining process, his brows furrowed suddenly.

Deep within the Yin energy lies an extremely faint yet incredibly stubborn force, like an iron nail hidden in a crack in a rock, unmoved no matter how the chaotic energy washes over it.