"Aru Machi no Gunjō" (或る街の群青, A Town In Blue) is a song by Japanese rock band Asian Kung-Fu Generation.

[1] AKFG proceeded to compose the track and released it as a single a month prior to the film's December 23 debut.

The song was ranked 5th on fans request for band's 10th anniversary live setlist on September 14, 2013.

[3] The music video for "Aru Machi no Gunjō" was directed by Hideaki Sunaga.

[4] Beginning with a sunrise, the PV alternates from an outer view of a city, the band playing the song in a garage, a raven inside a birdcage, and a fishtank holding a jellyfish before finally concluding with a sunset.