Panlong Mountain is a sacred place for loose cultivators. From the mountainside to the mountaintop, various cave mansions have been excavated for loose cultivators to reside and cultivate in.
The cave mansions are divided into different grades.
The cave mansion where Han Lin's former master Daoist Sun Jiu lived is just the lowest Ding-grade. The cave is small, with average spiritual energy, and it requires one spirit stone every year.
The slightly better Bing-grade cave mansions cost five spirit stones per year. The Yi-grade cave mansions cost fifteen spirit stones per year, and the top-tier Jia-grade cave mansions consist of only three dwellings. They are the retreats of Fire Cloud, Jian Lin, and Feng Luan, three True Men, with the most abundant spiritual energy.
Lu Qingfeng, having considerable wealth, did not hesitate to spend spirit stones and took one of the Bing-grade cave mansions.