The Cassiopeia is considered to be the most luxurious overnight train service in Japan.
Operated by East Japan Railway Company (JR East) and Hokkaido Railway Company (JR Hokkaido), it runs between Ueno Station in Tokyo and the city of Sapporo in the northern island of Hokkaido. The one-way journey lasts approximately 16 1/2 hours.

The Cassiopeia consists of all type "A" accommodation, all specific to this particular train.

A flat fee is charged for all rooms, regardless of starting or ending location.
Currently, accommodation rates range from about 27,000 Yen (roughly $235 USD) for a Cassiopeia Twin room to 51,000 Yen (roughly $444 USD) for a Cassiopeia Suite.

Features Include:
► Scale model made after Series N700 Z1 train configuratin belonging to JR Tokai.
► The aerodynamic double-wing nose is accurately represented.
► Equipped with a system which inclines the model train when it runs on a curve just like its prototype.
► The new all-surrounding diaphragm which connects cars almost without gap between them is represented.
► Operative Head/Tail Lights
► Printed with car numbers on the roof and warning color on the car edges.