"This is a cosplay manga with romcom elements"
Riiiiight, because I am sure 3/4ths of the people reading this did so so they could watch the author jelq about how good the cosplay his character made is, that's ABSOLUTELY the reason people started reading this. Of course.
"It's just because it's being published, once the arc concludes and you re-read it it you will see the pacing is fine"
BS the pacing is fine, back around when Gojo was losing his mind over the textile I went back to re-read the entire manga and you can tell how the pacing starts slowing to a crawl in the Nun Muder Party, let alone the making of the fucking Haniel cosplay, I'd personally argue it already starts dragging around the middle of the school festival, when the author really starts wanking themselves over how good and genuine the cosplays Gojo makes are
And I can already fucking tell that we won't even start progressing on the rift between Gojo and Marin, we will have a chapter that shows how scared Marin is of talking to Gojo, we will have a chapter where they meet, but it will be awkward and Gojo will say something that hurts Marin, THEN we will have a chapter where Gojo realizes what he did, and THEN they will start getting contacted by the big shots so we can drag this shit even further along