Indeed, that’s not the one. Her hair was shorter, maybe shoulder-length, or even a bit shorter. She was a sort of boss or had some leading position.
There was also a female Chinese doctor (or nurse or other medical profession), and I think a few more Chinese.
They switched from talking Korean to talking Chinese all the time and at some point there was also some French spoken, but I don’t remember why exactly.
So the arrogant Chinese doctor and the red-head boss had been divorced way before he came to work there and they initially hated each other. For some reason at some point they went to Shanghai together. I think that’s also where he was before he came (back) to Korea.
It was not historical and it was a K-drama.
The actors who played Chinese also were Chinese in real life (or at least had Chinese names).
Okay, see you later!