KORAIL MUGUNGHWA train from Cheongnyangni station to Donghae station 1635 train Cheongnyangni station~deokso station a driving image コレイルムグンファ号 せいりょうさとえき~トクソえき 走行映像코레일 무궁화호 청량리역~덕소역 주행영상 #한국철도공사 #무궁화호