这首歌是星野源为热门电视动画剧场版的片尾主题曲，由管乐团演奏，充满怀旧、悲伤和温暖的感觉。

木管乐器
Piccolo
Flutes 1 (& *2)
*Oboe
*Bassoon
*E♭ Clarinet
B♭ Clarinet 1
B♭ Clarinet 2
*B♭ Clarinet 3
*Alto Clarinet
Bass Clarinet
Alto Saxophone 1
*Alto Saxophone 2
Tenor Saxophone
Baritone Saxophone
铜管乐器
B♭ Trumpet 1
B♭ Trumpet 2
*B♭ Trumpet 3
F Horns 1 (& *2)
F Horns 3 (& *4)
Trombone 1
Trombone 2
*Trombone 3
Euphonium
Tuba
Electric Bass
*String Bass
打击乐器
Drums
Timpani
Percussion 1
…Triangle
*Percussion 2
…Tambourine, Cabasa,
Wind Chime
Percussion 3
…Glockenspiel
*Percussion 4
…Vibraphone