Advancing from High-level Emperor to Peak Emperor is not an easy feat, as resources are a major issue.
Not every White Nightmare Demon is as fortunate as the White Nightmare Emperor, who was able to break through after spending some additional time with this Spirit Girl.
For the strength enhancement of other White Nightmare Demons, Ning Man'er was temporarily helpless, since she was still young and could only provide limited spiritual energy.
Chu Mu and Ning Man'er primarily focused on traveling directly on their journey, and with their speed, should Ye Qingzi and Ye Wansheng stay in Spirit City for a while, they would likely encounter them.
Spirit City is situated towards the central part of the Human Plate, slightly closer to the bottom. It's a neutral city, belonging neither to Soul Covenant nor the Three Great Palaces.
However, both Soul Covenant and the powers of the Three Great Palaces have a presence in this city.
