In "The Condor Heroes", Master Jue Yuan mentioned that "Jiuyang Shen Gong" is a scripture hidden by the founder of Dharma in the Shurangama Sutra, but in the new edition, it is said that it was initiated by "an old mage".
No matter who created Jiuyang Shen Gong, it has made great contributions to the protagonist in The Dragon Slayer with eternal liberation. The "Jiuyang Zhenjing" was brought to Kunlun Mountain by Yin Kexi. Later, Zhang Wuji fell off the cliff of Kunlun Mountain and saw a white ape in a paradise. At that time, the white ape was ill, and Zhang Wuji followed Hu Qingniu to study medicine. He found a suture mark on the belly of the white ape, so he cut it open. He cured the white ape, then opened the tarpaulin package and found that it contained "Jiuyang Zhen Jing".
At that time, Zhang Wuji was fascinated by the mysterious art of palm, and the best way to cure it was to practice the magic of Jiuyang. After Yin Kexi took away the magic of Jiuyang, only Wudang, Emei and Shaolin had a few magic of Jiuyang. Before Jue Yuan died, Wuse, Guo Xiang and Zhang Sanfeng learned a small part of Jiuyang's magical power through Jue Yuan's dictation. Zhang Sanfeng's own part couldn't cure Zhang Wuji, so he wanted to collect the part of Shaolin, but in the end Shaolin closed down.
Zhang Wuji began to practice after he got the magic of Jiuyang from the belly of the white ape. He not only cured his illness, but also became a peerless master. Jiuyang Shengong is the top internal skill, so Zhang Wuji can practice to the seventh level in a very short time when learning Gankun's big move.
Before leaving the palace, Zhang Wuji wrapped up the "Magic of the Nine Yang" and buried it in the palace.