In 2005, Kadokawa Shoten greenlit an anime adaptation of an increasingly popular novel series that was thought to be nearly unadaptable. While the series was critically acclaimed, there were issues adapting a series that had many short stories and basically had the climax of the series in the first novel. Planners Wada and Udagawa were able to convince Yoko Hatta to sign on and adapt the set of novels into a TV show, inking director Tatsuya Ishihara and series director Yutaka Yamamoto to lead the production with the author Nagaru Tanigawa providing assistance. Tanigawa proposed from the start to adapt it in achronological order, which was combined with Ishihara’s desire to finish with the final portion of Melancholy. Yamamoto made the decision to lead with a student-made film and the hit was born on April 2, 2006 when The Adventures of Mikuru Asahina: Episode 00 started the first series of the Haruhi Suzumiya anime.
2013 was the anniversary marking the tenth year the Haruhi Suzumiya novel series first went into print. Likely, Kadokawa wanted to release two items during that year: a pachinko collaboration with Sankyo that had been in the works since 2009 at minimum, and a re-release of the 14 episodes that aired in 2006 as they were broadcast (which had never been released before in Japan). Due to circumstances that weren’t made public, both of these were pushed back to 2014 and on August 29, 2014, Kadokawa finally gave the 629 Japanese fans what they had been waiting for.