 It concentrates on the character of Mei Kusakabe from the original film and her adventures one night with the Kittenbus (the offspring of the Catbus from the film) and other cat-oriented vehicles.Originally released in Japan in 2003, the short is regularly shown at the Ghibli Museum, but has not been released to home video.It was shown briefly in the United States in 2006 to honor the North American release of fellow Miyazaki film "Spirited Away" and at a Juvenile Diabetes Research Foundation fundraiser a few days later.