Similar in art style and just as amazing. Both MCs are OP. Sole Leveling is more gradual with the OP-ness but it still makes sense in Omniscient Viewpoint. The OG-MC, Joonghyuk, from the book that the MC gets sucked into reminds me of BAMF!Sung Jin-Woo only not as pissed off as Joonghyuk is because 1) he's been around and been bad ass a lot longer and 2) Dokja, the self-insert in his story, won't stop pissing him off which is hysterical.