Vol. 4Crystals and Intruders
Lu Qing'an gathered powerful allies and resources while exploring the Pill Cloud Azure Coffin and defeating threats to his companions. The volume ended with his allies collecting Divine Crystals and Huang Hao returning to find that the Eternal Night Demon Emperor’s name still frightened the Wang Household.
- Lu Qing'an subdued the monstrous Primordial Heart-Returning Vine and brought its Divine Crystal back to his courtyard, where he shared resources and arranged for his allies to train.
- Xu Qingying learned that Lin Qingxue and Liang Juntian had sent Lu Zhengran to the Demon Domain because they believed his absence would help her cultivate.
- Lu Qing'an led his companions through the Pill Cloud Azure Coffin, destroyed its controller Bao Huai, and learned that Li Jingjing had left after merging with a Divine Crystal Mother Crystal.
- The Saber God pledged the Saber Alliance to Lu Qing'an after Xu Xuanyu explained that the Pill Azure Sect had used coffins to find people for pill refining.
- Xu Xuanyu rescued Li Feiyu and killed Huangfu Qi, while Xu Yunyi crippled Lin Qingxue and later followed Lu Qing'an to the Demon Domain.
- Lu Qing'an saved Xu Yunyi from a hidden golden flame, and Xu Xuanyu brought Li Feiyu and the other visitors to Lu Qing'an's courtyard.
- Lu Qing'an defeated Du Haitao and Han Chuyao, while Xu Qingying survived a possession attempt and learned that her parents had gone beyond the domain.
- Huang Hao trapped five cultivators who demanded his Divine Crystal, and Wang Zhang recognized him as Lu Qing'an's friend and begged him to spare the Wang Household.