The Snow Prince Gasshōdan group is a temporary boy choir that was formed specially for this movie, and it is led by actor Shintaro Morimoto. The group comes under the management of Johnny Jr., a Japanese talent agency that specially trains male idols. Snow Prince Gasshōdan is made up of 10 boys, who together, had an average age of 10.5 years at the time of the filming. This makes the group Snow Prince Gasshōdan the youngest group in the history of all the Johnny Jr. idol groups to release a single. According to the movie's release committee, the group Snow Prince Gasshōdan existed until the end of 2010 before it was disbanded. Leader Shintaro Morimoto expressed hope the group could be reunited again after 10 years.
