The Kansai Enko Aya line was originally constructed in 1913 as a conventional railway line, serving the local communities and supporting the transportation of goods. However, over the years, changes in the regional demographics and the rise of automobile transportation led to a significant decline in passenger numbers. By the 1970s, the line was on the verge of closure.

Kansai is the cultural heart of Japan, encompassing major cities like

: This is a sensitive social phenomenon in Japan where older men pay younger women for their time or companionship.