artist never changed, just the writer.
Naw it did change. In 127 and 128 it's the old art from the start of the series. You can notice it cause Sanghee's eyes are bigger, she's not raising her hands like an idiot, and her dad looks older. The other artist has a "cleaner" style as in less details and a more boxy/plastic kind of look.
I miss the original artist
me too brother, the plastic Sanghee haunts me in my sleep
Oof I thought i was the only one that noticed, i also miss the old art style
the old artist came back for like 2 chapters and then left again lol rip i was so excited