[4] The OHaFu 25 901 lounge car was built by Fuji Heavy Industries, with the interior designed by Matsuya.

[4] The three Yume Kūkan coaches were built in 1989,[4] and were displayed at the "Yokohama Exotic Showcase '89" event before entering service.

[5] Following a Sayonara Yume Kukan Hokutosei run between Ueno and Sapporo, the three coaches were taken out of service from March 2008, and stored at Oku Depot in Tokyo.

[6] The OHaFu 25 901 lounge car and OShi 25 901 dining car were sold to Mitsui & Co.,[5] and in May 2009, the two coaches were moved to the Lalaport Shin-Misato shopping mall in Misato, Saitama, next to Shin-Misato Station, where they were used as cafe and rest area facilities when the mall opened in September of that year.

[5] The ORoNe 25 901 sleeping car was moved to Koto, Tokyo in December 2011, and opened in February 2012 providing additional seating accommodation for the French restaurant "A ta Gueule".