Which is the most accurate to the real story of it? the manhua? the anime? the novel? or is it the live action? If so please provide the link on which you can read or watch it. Thank you!\(○^ω^○)/
oh and u can read the novel from the translators' site:
https://exiledrebelsscanlations.com/novels/grandmaster-of-demonic-cultivation/
the grandfather is giving me a headache, i dont really like people who cant listen.