Hey @blackchain, Welcome to the steemit community. I think you're the first south korean i've met on here. Glad to have you here.
This link should get you started https://steemit.com/steemit/@thecryptofiend/how-to-get-noticed-if-you-are-a-new-user-on-steemit.

Feel free to ask me any question you have. I would love to help if i can.

Would be super happy if you follow me @kingbach I follow back. We can grow together. Thank you