The special carriage is a dedicated Imperial Family vehicle primarily integrated into the E655 series Nagomi Introduced in October 2007 as a next-generation joyful train, this is coupled in the middle of the E655 series Nagomi and used as a royal train or for state guests. The E655 series composition, made up of "high-grade vehicles," features a novel design that combines sharpness and weightiness. The body color employs a majolica paint that shifts from purple to brown depending on lighting conditions, creating a refined yet elegant appearance suitable for a royal train when running with the special carriage. The E655 series is an AC/DC train capable of operating on all electrified sections, and by equipping the front car, Kuro E654, with a power-generating engine, it can also be pulled by a diesel locomotive on non-electrified sections. Additionally, while in trial operation, the special carriage has been incorporated into both the E657 and E257 series.
- A special carriage used as a royal train for the Imperial Family. Recreate the modern royal train that replaces the first royal train formation.
- Reproduce the impressive sharp and heavy exterior with the body color of majolica paint that changes hues with lighting.
- Vividly express the chrysanthemum crest on the body side and the three elegant gold lines, accurately modeling a high-quality style.
- The interior (special room) sofa comprises separate blue parts, recreating the unique presence of a special carriage with door frame markings and more.
- The coupler is equipped with a KATO body-mounted tight-lock coupler by default, allowing connection with the E655 series Nagomi, E257 series, and E657 series.
- Include decorations and accessories applied to the E655 series front car during royal train operations, crafting a fitting appearance for a royal train. Special front car insignia, the national flag, coupler cover, steps, and front handrail. (Fitted front and back according to operation.)
- The package comes in a standard clear case.
- Compatible with interior lighting kit Kato 11-213