 On 10 October 1922, the was formed, and the line was reopened from 5 July 1923 using the former Chōshi Sightseeing Railway trackbed and structures between Chōshi and Inuboh Stations, with an extension south to .Rolling stock consisted of two petrol-engined locomotives and two two-axle carriages.The locomotives proved unreliable, however, and the line was electrified at 600 V DC from 1 July 1925, with a fleet of three electric cars purchased from the former (present-day JR Iida Line).