Winter Sonata is old and irrelevant.Do South Korean soap drama like Winter Sonata cater to the white or they control parts of the world? No, but they created such a massive wave across Asia in 2000s through Winter Sonata, Goong, etc that the term Hallyu emerge. And that's when South Korean had gdp per capita even lower than China now. China currently do not have its own Chinese wave. You just need to create a piece of media that is high quality and easy to to reasonate. You talk about conquer the world, demolish the western media but do Chinese media now even dominate in Asia? Baby steps first. And it's not like China do not have high quality media that is not Xianxia, which requires people to have an understanding of lord. They just don't bother advertise it outside.
Google is banned in China so it wasn't Chinese people searching for this.