Hong Qigong
Guo incorporates parts of the manual's skills into his own repertoire of martial arts and becomes stronger. The power of his 'Eighteen Dragon Subduing Palms' is enhanced after the "Nine Yin Manual"'s skills worked wonders by increasing his inner energy. His future spouse Huang Rong also benefits from the book. They later pass their knowledge of the manual to Yideng and their teacher Hong Qigong to help them recover from their internal injuries.