・ 충전식 교통 카드로 지하철, 공항, 역사 내 등 다양한 곳에서 구매 가능 (약 4,000원)  ・ 하차 후 30분 이내에 환승 가능
・ A rechargeable transportation card that can be purchased in various places such as subways, airports, and within stations (approximately 4,000 won) ・ Transfers possible within 30 minutes after getting off
・ Rechargeable transportation cards can be purchased in various places such as subway, airport, and station (about 4,000 KRW) ・ Transfer within 30 minutes after getting off is possible