Arc 19The Causality Behind Fate
Gu An defeated the Nirvana God Emperor, advanced his cultivation, and continued protecting the people around him as threats tied to the Heavenly Dao and the War Court emerged. After Xu Ling was killed by an unknown Power of Causality, Gu An resolved to master that power and confront its source.
- Gu An proposed a hundred-year cultivation teaching system for the Taixuan Sect, then discovered that Zhu Xi had obtained Heavenly Dao Theory and warned her against using it without his guidance.
- As the Xuanhuang Demon God and Heavenly Demon Great Emperor invaded, Gu An protected mortals, helped Tian Yao'er reach the Nirvana Realm, and watched Ji Xiaoyu enter the Innate Dao Talisman after fighting the demons.
- Gu An destroyed the one hundred and twenty Xuanhuang Demon Gods and confronted the Nirvana God Emperor, who withdrew after Gu An demanded that the Heavenly Spirit Great World's inhabitants be left to their own fate.
- Gu An returned to the Third Medicine Valley, advanced to the late stage of the Luo Heaven Carefree Immortal Realm, and received visitors including Yang Jian, Zhang Xianwang, Ye Lan, and Zhen Qin.
- After Ye Lan died and entered the Reincarnation Vortex, Gu An identified the War Court as a threat beyond the Boundary Gate and later welcomed Li Ya back to the valley.
- Gu An intervened in Xiao Chuan's fate after his parents returned to the Holy Domain, but Xu Ling was killed by an unknown Power of Causality and Chen Luo was left crippled.
- Gu An restored Xu Ling's body but told her she could not return, while Yang Jian sent Chen Luo toward the Taixuan Sect and named the child Chen Chuan.
- You Yingying left to temper herself, and Gu An considered making a karmic artifact before walking through the valley with a black-covered book that governed life and death.