Nippō Main Line
Proper noun referring to the JR Kyushu railway line connecting Kagoshima, Miyazaki, and Fukuoka prefectures.
The Nippō Main Line runs through Miyazaki Prefecture.
The name combines the kanji for Hyūga (日向, an old province name) and Buzen (豊前, another old province name), reflecting the historical regions the line connects.