Lol There's one truth that no one can deny. A manhwa can never compete against the novel it was adapted from. They're bound to skip some parts. Adapting every word into an image is impossible. Ofcourse manhwa has its own charm and novel has its own. Novel depends on our imagination, and the manhwa is the author's own imagination of the novel. So I'd say, READ BOTH. AT THE SAME TIME. This way you won't miss anything and you'll also be able to visualise it.
i totally agree on how a novel misses a lot of small and important details most of the time but i find it difficult to imagine stuff especially in this case, it's fantasy which has a lot of fighting scenes and powers and stuff! i do read novels and other books but i just find it difficult and right now I'm currently in a reading slump Σ(っ°Д °;)っ

Pls pls pls give me spoilers ((T_T)) i hate suspense but i love this story so mich ( TДT)