For what it's worth, the second floor holds a vast collection of soul cultivation techniques, surpassing even the number of spirit cultivation techniques available.
The reason for this disparity is likely due to the fact that the soul cultivation system is more widely practiced and prioritized across the Yin Region, which is approximately twice the size of the Yang Region.
It is interesting to note that there was a time when soul cultivation was the predominant system even in the Yang Region. However, the reason for the current absence of soul cultivators in the Yang Region remains a mystery to most individuals in the lower domain. According to a recorded rumor in the historical annals, the lower domain used to be one realm without any distinction between the Yang and Yin Regions.
