The second light novel of the Hibike! Euphonium series titled Hibike! Euphonium 2 Kitauji Koukou Suisougaku-bu no Ichiban Atsui Natsu(響け! ユーフォニアム2 北宇治高校吹奏楽部のいちばん熱い夏Hibike! Yūfoniamu 2 Kitauji Kōkō Suisōgaku-bu no Ichiban Atsui Natsu, lit. Sound! Euphonium 2 The Hottest Summer of Kitauji High School's Concert Band) was released on March 5, 2015.