Since the manhwa is dead, or so it seems. Here is the novel:Eng it's MTL (1000ch): https://novelbin.me/novel-book/drug-eating-genius-mage#tab-chapters-titleRaw (1400ch): https://booktoki468.com/novel/6852Raw official (1400ch): https://ridibooks.com/books/2057137755
Since the manhwa is dead, or so it seems. Here is the novel:
Eng it's MTL (1000ch): https://novelbin.me/novel-book/drug-eating-genius-mage#tab-chapters-title
Raw (1400ch): https://booktoki468.com/novel/6852
Raw official (1400ch): https://ridibooks.com/books/2057137755