The greatest secret hidden within Shifang City was actually seen through by him in one glance, it seems One Drop of Blood does not have its reputation in vain.
The fusion research involving humans and mechanical puppets was originally a taboo of the Six Paths.
He was a rare successful subject in fusion research, and that was a well-hidden secret by the forces behind him.
If the Hundred Immortal Sects in the Mortal World were to find out that Shifang City had truly succeeded in researching the secret techniques of combining humans and mechanical puppets, it would undoubtedly have a great impact on their plans.
The timing for them to appear before the world in the form of mechanical puppets had not yet matured, and not the slightest mistake could appear here.
The most prudent decision would be to slaughter them on the spot!
Yu Xiuji was about to draw the bow and fire, but suddenly his body fell uncontrollably.
