Seoul Metropolitan Subway description

Hello
Korea Subway Master is now available that offers a quick view of the metropolitan subway map. (Seoul, Busan, Daegu, Gwangju, Daejeon, KTX, SRT) I look forward to your kind cooperation. I will improve many good functions from now on.
We also support the English version of the map for foreigners.

* Copyright source of the subway map image
Seoul - http://www.seoulmetro.co.kr
Busan - https://www.humetro.busan.kr
Daegu - https://www.dtro.or.kr
Gwangju - http://www.grtc.co.kr
Daejeon - http://www.djet.co.kr