Gakkō no Kaidan is a Japanese light novel series by Takaaki Kaima with illustrations by Amane Amahuku. The first novel in the series was released on January 30, 2006, and a total of twelve volumes have been published by Enterbrain under their Famitsu Bunko publishing imprint when the series concluded on July 30, 2009. A live action movie adaptation was directed by Hirosaka Sasaki and premiered in Japanese theaters on June 9, 2007. The word kaidan used in the title is homophonic to the word ''Kaidan, meaning "ghost stories".
Plot
Story
Gakkō no Kaidan's story takes place in the Tengurihama Academy, and centers around the male protagonist Yukihiro Kanba who has recently been admitted into the school after being adopted by his uncle. One day, Yukihiro stumbles across Yūko Kokonoe, who sprinted from the stairs behind him before quickly disappearing down the stairs. After Yukihiro stumbles across the gymnastic club, who attempts to recruit Yukihiro before being stopped by Yūko, he is forced to join the "staircase club", an unauthorized club that races in the stairs. While he is initially reluctant to join the club due to its bad reputation among students, he later finds the activities exhilarating and decides to join the club.
Gakkō no Kaidan began as a series of light novels written by Takaaki Kaima and illustrated by Amane Amahuku. Kaima originally entered the first novel in the series into Enterbrain's eighth Enterbrain Entertainment Awards in 2005, and the novel tied with Satoshi Katō's Hashitte Kaero! for the excellence award. Ten volumes and two short story collections from the original series were released between January 30, 2006 and October 30, 2010 under Enterbrain's Famitsu Bunko label. In Kadokawa Shoten's first Light Novel Award contest held in 2007, the first volume of Gakkō no Kaidan was one of three runner-ups in the school setting category, having lost the award to Chrome Shelled Regios. A spin-off series, titled Gakkō no Soto-Kaidan and again written and illustrated by Kaima and Amahuku, will begin to be published starting with its first volume on March 30, 2012.
Movie
A live action movie adaptation, based on the first volume of the novels, was directed by Hirohisa Sasaki and premiered in Japanese theaters on April 28, 2007. The movie featured several prominent changes from the light novels, such as instead of Yukihiro Kanba, the role of the protagonist was given to the female character Satomi Kanba played by Mei Kurukawa, whose role is based on Yukihiro's. Other cast members include Airi Tōriyama as Yūko Kokonoe, Toshinobu Matsuo as Kengo Kariya, Asami Kai as Izumi Amagasaki, Rakuto Tochihara as Sōji Saegusa, Nana Akiyama as Nami Izutsu, and Yuka Kosaka as Chizuru Nakamura. Before the film was released, the opening theme, entitled "Start Line" by Mei Kurukawa, was released in a maxi single of the same name on April 25, 2007. The ending theme for the movie is "Because You Are You". A DVD release of the film was released on October 26, 2007.
Manga
A manga adaptation based on the original Gakkō no Kaidan light novel series was serialized between March 2010 and March 2012 on Enterbrain's online manga magazine Famitsu Comic Clear. The manga was illustrated by Aki Yoshii based on the original character designs by Amane Amahuku, and the series' twenty-four individual chapters were later collected into a series of four tankōbon volumes published under Enterbrain's Famitsu Clear Comics imprint between September 15, 2010 and March 15, 2012.
