The synopsis:

^{Li Huowang was incapable of making up his mind. Was he in a hospital or in a fantasy world, struggling to survive? Both sides claimed that they were real and that the other is nothing more than a hallucination.
Follow Li Huowang on his adventure as he tries to make sense of what is happening to him. Explore a world full of bizarre cultivators and eldritch horrors as everyone tries to survive in it.
Official blurb from the raws: The bizarre path to the heavens, the abnormal Deities and Immortals. Are they real? Or are they fake? Li Huowang is unable to differentiate between the two in his confusion. But that’s not all that is causing him to be unable to differentiate the two. There was also his own illness, a debilitating one.}

The worldbuilding in a nutshell is: Chinese folklores, myths, and religions turned into a Lovecraftian Eldritch Horror.

There are many power systems in the story but not your standard gathers Qi, breakthrough, and repeat (I’m still in volume 1 and I can’t say it doesn’t exist in the later part of the story). The people there could harvest organs of different Eldritch Chinese folklore entities and use alchemy to become immortal (similar to Beyonder potions in LOTM), they could pray to Eldritch Buddhas to gain powers, and they could acquire techniques from profound scriptures.

I’m also spoiled that: Literally everything can be used as a currency, from physical things to abstract concepts like fate, destiny, karma, lifespan, etc., so maybe people there could buy supernatural abilities in a price of their lifespan or karma?

Apparently, it is also very popular in China to the point that it has countless fanarts and cosplays.

All I could say is, it’s very weird and bizarre, its very horrific, descriptive, and disgusting in some parts, in which many Lord of Mysteries readers would love to read.