Responses

It's a lot easier if you do it from the website than the app. If you have an account, any coins on the en version should transfer to the ko version, just change the /en at the end of the site address to /ko then login as you would normally and the coins should still be there. Then you can purchase the ko chapters.
Buy raw from lezhin or mrblue. That helps the author too. The stories get better. if the heart wants what it wants, go buy digital copies or wait and support still (=・ω・=)