The E257 Series Group 2000 and Group 2500 replaced the deterioration 185 series. The Group 2000 started operation in March 2020 and Group 2500 started operation as “ODORIKO” in March 2021.The Group 2000 has been modified based on the Group 0 that was previously operate as "Azusa" and "Kaiji", and the Group 2500 is based on the Group 500 that was operate in "Wakashio" and "Sazanami".The main changes include updating the control equipment and changing the lighting to LED. In addition, the design has been renewed by changing to a white and deep-blue color that matches the E261 series. The Group 2000 connect Tokyo and Izu, the Group 2500 connect Tokyo and the temple Shuzenji, and the Group 2000 and Group 2500 are operated
multiple-section train between Tokyo and Ito.
Omiya General Rolling Stock Center Higashi Omiya Center's NA-08 formation (2000 series) and NC-31 formation (2500 series) are prototypes
-Reproduce the appearance of underfloor equipment with updated equipment, LED lights, snowplow at the front, and some windows filled with the installation of luggage space. Also, make different fronts for 2000s and 2500s.
-Beautifully reproduces the characteristic white and azure body paint that matches the E261 series
-Faithfully reproduce the shape of the side glass with few steps from the car body
-The replaceable front head mark has a "dancer" attached. In addition, head marks such as "Limited Express Shonan" are recorded.
-A body mount close-coupled coupler (without hook) is used for the intermediate connection. 2000 series 9th car, 2500 series 10th car and 14th car with Denren (1st stage) for the beginning
-Stable driving is possible by adopting a well-established power unit. 2000 series with traction tires, 2500 series without traction tires in consideration of combined operation
・ Head / tail light, front head mark lit (9-car set Kuha E257-2110 and 5-car set Kuha E256-2506 have a light-off switch)
・ Destination display sticker included
・ DCC friendly (only for the first car)