This was an extremely detailed and complicated task. If it was any other martial artist, it was impossible to complete in a short period of time.
However, with the large amount of experience he had accumulated in modifying cultivation methods and his powerful data ability, Chu Nan easily combined his current situation and further understanding of cultivation methods to complete the first level of the Nine Revolutions Technique.
The modified first level of the Nine Revolutions Technique was not much different from the first center of gravity technique left behind by Su Xuansheng back then. It proved that Su Xuansheng was indeed a martial arts genius back then. The cultivation method he created had such a perfect completion rate that even Chu Nan could not improve it much now.
However, outside the core, Chu Nan made many modifications.
