The cultivation method of demons was largely different from the methods martial cultivators used. Moreover, there would also be different methods between different demons. 

The giant beast body of Jiu Ying sat in the middle of the mountains. He had almost completely camouflaged with the eerie mountain wall, with the exception of his black scales that were glowing with faint light. 

His heads were arranged in a mysterious arrangement, allowing him to vaguely sense the essence of a spirit design. Clearly, this was something that had been passed down to him over generations. For demons, the best and quickest method was something that lay within their bloodline. 

Wu Yu sorted out the items left behind by Ghostly Wings of the Black Mountain into five categories: immortal medicines, immortal essences, immortal treasures, other precious treasures, and any other miscellaneous items. 

For those nauseating items that ghostly cultivators had created, Wu Yu left them in a Sumeru Pouch before burying them deep in the ground. 

The items that were left behind were largely not useful to Wu Yu at all. For example, in the aspect of spiritual immortal treasures, the six flags used by Ghostly Wings of Black Mountain were very powerful. However, Wu Yu felt that mastering this spiritual immortal treasure...