Korean here, although I've been living in America for almost 20 years now. I speak English pretty fluently. Now, that doesn't mean I'm a great writer... I have tons of writing related problems! My writing is just as lacking in Korean as it is in English. XD I have a long way to go.
My comic, Heart of Keol, actually features an alternate world inspired by ancient Korea. There is a Korean translation available on Tapastic, but only for the first chapter... I need to fix that soon!