I think your delusional, it's the same artist. The differences you see might just be them testing a slightly different style or coloring method
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It’s not slightly :( Old art captured the dire situation, kiyoung inner thoughts, his bitchy drama and hayan craziness better,
new art is too comedic, unserious and less dramatic. I especially liked kiyoung old eyes art better
I know coz I'm a artist too, the OG art style is has a glossy finish. The new characters suit the anime stereotype and rustic
And in the panel where Charlotte and Kiyoung are stading together, And even the last panel of Ch 118 the body proportions r a mess which is so sad
THE ART HAS FUCKING CHANGED,EAIER ONE HAD A GLOSSY LUSTRE, THIS MUCH MORE CARTOONY,I'M DEAD FUCKING SERIOUS