What stopped you from pursuing it? Just asking due to you using past tense.
Just because if I did try to make a Murim story, then it'll most likely be a whole new game (no association with this game) as there is not that much content on this.
I'm not the biggest fan of how the start is forced upon the player. Not enough diversity of options to display MC's personality in line to immerse you're self in Murim.