This is another short Tokyo area line. Its a 5.7 km single track line in Chiba Prefecture linking the Joban line with the city of Nagareyama. Equipment is ex-Seibu. It is unusual by Japanese standards for several reasons:
as an independent railway operator Ryutetsu is unique for having no major subsidiary businesses
PASMO and Suica contactless smartcards cannot be used and there are no plans to introduce them
Ryutetsu is the only railway in Japan without an official web site