The method of refining Vital Gu!
This was the Tri-Gu Sect's core method and also the key to the sect's ability to control Gu.
There were actually quite a few people who knew how to refine Gu in Southern Border. After all, the environment was too suitable for Gu refinement methods.
Some villagers even had inherited Gu refinement methods.
However, only the Tri-Gu Sect was famous for their Gu. The reason was because of this Vital Gu's refinement method.
Gus were extremely savage due to the refinement method.
It did not mean that they would necessarily control them if one fed their Gu.
The backlash of a Gu was a huge problem.
Even if the Gu did not retaliate, wanting it to be obedient? This was also very difficult.
Under such circumstances, the founder of the Tri-Gu Sect created the method to refine the Vital Gu.