The number of tails a member of the Fox tribe has is innate. The more tails one has, the higher one's natural talent and the faster one's cultivation speed, with the nine-tailed foxes being the most powerful.
Xuannv came from the seven-tailed fox lineage. Even in Qingqiu, seven-tailed foxes were a rare and noble clan, which was why Xuannv's full sister was able to marry Bai Qian's eldest brother in a political alliance. Xuannv only fell slightly short in terms of being born from a concubine rather than the primary wife, but her own talent was by no means weak.
All the spells Xuannv had learned by Yaoguang's side over the years belonged to the Celestial Tribe, which would be suppressed within the Great Zhiming Palace. However, allure was an innate magic of the Fox tribe, and Fox tribe magic would not be suppressed in the Great Zhiming Palace. Therefore, the Ghost Tribe could form marital alliances with the Fox tribe, but not with the Celestial Tribe.
Chapter 271