Yes, you are right
what would you recommend me ?the novel, the series or the comic?
the novel! because that's the original! some parts of the story in the novel may not be seen on the drama nor in the anime. I don't know if the manhwa will consider some parts of the story in the novel because it has some mature parts ahhahahahaha
https://exiledrebelsscanlations.com/novels/grandmaster-of-demonic-cultivation/
here is the link for the novel if you want to read it!
the best! also the novel! the Chinese drama of this 'the untamed'!. There's also a anime version of this and audio drama and eventhough ive watch or read them i will never get tired of doing that! its such a masterpiece