Narration recorded by Chang Kiha Mixed by Chang Kiha Mastered by Norman Nitzsche @Calyx Mastering, Berlin Original song 'Silverhair Express' by HYUKOH <through love> 김초엽 작가의 저서 <우리가 빛의 속도로 갈 수 없다면> 중 일부가 내레이션으로 사용되었습니다. Extracts from <If We Cannot Move at the Speed of Light> by Kim Choyeop were used in the narration. Distributed by MOrecords