First, many Korean stars are beautiful. People who have seen Korean dramas are probably impressed by its charm. And everyone is saying that South Korea pays more attention to appearance, and stars can't be actors without plastic surgery.
Second, Korean stars said in an interview that they had plastic surgery. And every TV series they play looks different, but it gets better and better.
Third, because of professional needs, stars should be popular, either with face or strength, and they will also be fine-tuned to keep up with fans.
Anyway, that's what they all said when I went to idhospital, but they also added some personal opinions ~ ~