idk why my reply was cut short ... but good thing i've put in my notes first.. so here we go,
They also changed certain details but it’s very much a “if you know, you know” situation(too lazy to type the details but yeah). I guess they’re keeping it short for pacing, but if you don’t want to miss out on those brotherly moments or want to catch the differences, you really should read the novel too! Still, I’ll keep following the webtoon because I love the art and I’m curious to see what else they’ll change or whether they’ll eventually include those sibling moments.
Other notes: I forgot the name of the silver-haired guy who digs into Seohan’s past, but in the novel he wasn’t redeemable at all. His brother eventually discovered he was planning to ride on Seohan’s fame and got back at him for it!! (it was satisfying). There’s also a scene where Seohan asks his brother for help digging into a celebrity’s past, and his brother agrees (in exchange for something, of course HSHSSHAH). Honestly, y'all should give the novel a chance or if you have time!! it has so many extra moments, including chapters from Seojun’s POV, that add depth you don’t get in the webtoon.
Right now, the translation is ongoing. The novel has around 600 chapters plus side stories, but only about 250 are translated for free (there are more if you pay or wait). And the current chapter we’re at in the webtoon hasn’t been translated yet, so you might want to hold off until it catches up!

So I couldn’t wait... and so I read the novel. At first, I had a hard time finding the exact chapter, so I just picked up from the debut. That’s when I realized they cut out a lot.
For example, U-kim wasn’t introduced until later, and they removed quite a few Seohan–Seojun sibling moments (which, honestly, are some of the most anticipated moments for fans