[citation needed] All trains are based at Kunugiyama and Tsudanuma Depots.

After World War II, the ownership of the right-of-way of an uncompleted Imperial Japanese Army military railway line was transferred to Keisei.

[citation needed] Shin-Keisei was established as a subsidiary of Keisei on 23 October 1946 to construct and operate the line.

[4] The first section of the line, 2.5 km from Shin-Tsudanuma to Yakuendai, was opened on 27 December 1947, with a track gauge of 1,067 mm (3 ft 6 in) and electrified at 1,500 V DC overhead.

[4] In August 1959, the line was again regauged, this time to 1,435 mm (4 ft 8+1⁄2 in) to match the standard gauge used by Keisei Electric Railway.