First of all, because South Korea's entertainment industry has formed an industry, it is indispensable to be an industrial star, and so are Hollywood and Hong Kong. So their choice of actors is biased towards idols. Second, South Korea's cosmetic industry is very developed. For the first reason, many actors have had cosmetic surgery. Third, Korean make-up is better than China's products, whether it is cosmetic technology or products. The production cost of Korean TV series is much higher than that of China, with good equipment and technology, and it takes time to produce, so the overall light and shadow is better than that of China.