I've lived in Korea for the past few years, been with more than my fair share of the local women and I'm currently in a LTR with a Korean girl.
The major differences in game will primarily stem from the culture's Confucian roots combined with the easy integration of the Christian culture from the West due to its high compatibility with the historically indigenous Shamanism. You won't be able to get away with talking about sex as much as you could in the US, for instance, so sexual framing uses a whole different map. So you're better off with just using sexual state projection instead. Kino has to be a lot more situational and less overt (but still as heavy as per normal pickup), and calibration is a shit ton more important.
Since the native language here is not English, don't bother with NLP stuff, of course. Most places you go will have women that know English, but you can still plow through sets even if they don't understand most of what you're saying.
For seduction, you'll find that the Korean women most compatible with a Westerner such as yourself (I'm assuming you are), are the ones who have a deep-seeded feeling of contempt for the negative parts of collectivism and you can use that to your advantage by offering a space where she can enjoy the benefits of individualism with you. Check out my blog post here about this:
http://chiefpua.com/a-whole-new-world/