Hisatsu Orange Railway Co., Ltd. is a third-sector railway company which operates Hisatsu Orange Railway Line in Kumamoto and Kagoshima prefectures. The line follows the former part of the JR Kyushu Kagoshima Main Line that connected Yatsushiro and Sendai in Kumamoto and Kagoshima Prefectures, known historically as Higo and Satsuma Provinces. The length of the line is 116.9 km.

The Seishun 18 Ticket is a special discount ticket issued in Japan that allows holders one-day unlimited rides on the local trains of Japan Railways Group (JR) during limited periods of the year.