Is there some sorta rule that k-celebs can only wear black and white gowns on red carpet?

I was thinking maybe because black and white goes well with red.

Well... I see that she is wearing green in two of these photos and green is also a colour that goes well with red.

don't know why none of these companies tried to hire or just contract work to Sohee...

I will never understand what's the problem with Korean celebrities with never serving like all their looks are mid as best like they always keep it simple