The refinement of a living corpse into a flying yaksha could be broadly divided into four steps: fusing the demonic core into the body, unifying it with the human core, using Earth Malevolent Qi to charge the core, and finally evolving the corpse core.0

Among them, the most dangerous phases were the fusion of the demonic core and the Earth Malevolent Qi's charging of the core.0

During the fusion, the living corpse might fail to withstand the power of the demonic core, leading to the Qihai spiraling out of control, the body collapsing, and ultimately dying from an explosion.0

Even if one managed to survive this step by sheer luck, there would be no room for relaxation.0

The unification of the human core required even greater precision. At this stage, Qin Sang had to complete countless immensely complex hand seals to assist the living corpse in merging with the demonic core.0

There could be no pause, not even for a moment.0

The key lay...0