Lee Baekwon's feed

I'm looking to get into reading novels beyond romance, and I'm torn between Lord of the Mysteries (LotM) and Omniscient Reader's Viewpoint (ORV).
I've heard great things about LotM, and for ORV, I love action manhwa and want to read the novel first. I'm not asking which is objectively better, but I'm having trouble deciding which to start with.

Any recommendations on which one I should read first?