why do you think that?
Up until I believe Chap. 54 or 55 is, I think, is Chinese. That's a guess. When you switch to Tooncor to view raws they are in Korean. Come to think of it maybe it's because it is Tooncor but where did the Chinese come from?
The author is from Korea and this was originally published only in Korean... The Chinese version might be a scanlation or it was officially published, I don't know and don't care.
just like there are english scan groups, there are also chinese scan groups :) the author (yusa) is from south korea so this was written in korean only
Was this written in two different languages? I think Chinese and Korean. Am I wrong?