The Gu Immortal Sect's Gu refinement methods had been honed over many years, so they had become very mature.
They had not heard of a disciple who died because of Gu refinement for many years.
The stability could be seen.
As for the Gu Demon Sect's blood refinement method, Fang Yuan was most worried that there would be a mistake halfway through the refinement and there would be no way to make up for it.
Thus, he had the thought from earlier.
However, it would not be easy to combine such a mature Gu refinement method with another sect's Gu refinement method.
Who knew if it would succeed.
It was probably no less difficult than researching a new Gu refinement method.
If not for the history of the two sects coming from the same lineage, Fang Yuan would not even have this idea.
"However, there is still hope."
Fang Yuan knew that he was not someone who would give up easily.