Hibike! Euphonium Kitauji Kōkō Suisōgaku-bu e Yōkoso (響け! ユーフォニアム 北宇治高校吹奏楽部へようこそ, lit. Sound! Euphonium Welcome to Kitauji High School's Musical Instrument Club) is a Japanese novel by Ayano Takeda, published on December 5, 2013 by Takarajimasha. The story focuses on the Kitauji High School Music Club, which is steadily improving thanks to the newly appointed adviser's strict instruction. A manga adaptation illustrated by Hami began serialization on the Kono Manga ga Sugoi! Web website on November 28, 2014. An anime adaptation, produced by Kyoto Animationand directed by Tatsuya Ishihara, will begin airing in Japan in April 2015.
The Kitauji high school wind instrument club had at one time participated in national tournaments and was a champion school, but after the club's adviser changed, they have not been able to even participate in the qualifying tournament. However, thanks to the newly appointed adviser's strict instruction, the students are steadily improving and build up their strength. As they fight over who plays solos, some students give priority to studying and quit club activities. Finally, the long wished-for day of the contest arrives.