In Legend of the Condor Heroes, Wang Zhongyang lost a bet with Jiuyin Zhen Jing, so he lent Jiuyin Zhen Jing to Jiuyin Zhen Jing, and Jiuyin Zhen Jing was used by Jiuyin Zhen Jing to realize the magical power of Jiuyang, so this magical power of Jiuyang originally came from Jiuyin Zhen Jing. Later, the Shen Gong of Jiuyang created by the monks was stored in the Buddhist Scripture Pavilion of Shaolin Temple, so Jue Yuan, the monk in charge of the Buddhist Scripture Pavilion, practiced this peerless martial arts, and later amazed Huang and others with this Jiuyang.
However, monk Jue Yuan's behavior at that time also made many lawless people turn their attention to "Jiuyang Shen Gong", especially the masters who worked for Mongolian Khan Kublai Khan at that time, and were very interested in this "Jiuyang Shen Gong". Later, Persian masters Yin Kexi and Xiaoxiangzi stole Amitabha's "Jiuyang Shengong" from Jue Yuan, and the monk Jue Yuan immediately caught up with him. Yin Kexi and Xiaoxiangzi were going to kill the Jue Yuan monk, but they couldn't beat the Jue Yuan monk together, while the Jue Yuan monk didn't know how to attack others because he only had the internal skill of "Jiuyang siddhi". Therefore, Jue Yuan monk has been entangled with Yin Kexi and Xiaoxiangzi for a long time, but the two sides have never been able to tell the winner.
Because the monk Jue Yuan is really in hot pursuit, Yin Kexi and Xiaoxiangzi quietly hid the secret book of "Jiuyang siddhi" into the belly of the white-haired monkey, and they also want to come back and get it back one day. However, this book was not taken away by Yin Kexi and Xiaoxiangzi, but was taken away and cultivated by Zhang Wuji.