[6] Set 2002 was initially painted into all-over cream livery and entered service in July 2010 with advertising vinyls promoting the local Aeon shopping mall.

Following the completion of accident damage repairs in March 2015, set 2002 was repainted in the early Choshi Electric Railway livery of red and beige, returning to service in April 2015.

[10] The trains feature longitudinal seating, and are equipped with fare collection boxes at each end for wanman driver only operation.

[12] The four cars in operation were originally built in 1962 by Hitachi and Nippon Sharyo as 2010 series trains for use on the 1,372 mm (4 ft 6 in) gauge Keio Line in Tokyo.

[3] Two two-car 800 series trains (MoHa 822 + KuHa 852 and MoHa 823 + KuHa 853) were purchased from the Iyo Railway in November 2009, and were modified for driver-only-operation and repainted at the line's Nakanocho Depot by Keisei Sharyo engineers, becoming the Choshi Electric Railway 2000 series.