Jun Maeda
The visual novel has two main theme songs, the opening theme "Last regrets", and the ending theme , both sung by Ayana. The lyrics for both songs were written by Jun Maeda, and arranged by Kazuya Takase of I've Sound. The five heroines have leitmotifs. Ayu's theme is ; Nayuki's theme is ; Makoto's theme is "The Fox and the Grapes"; Shiori's theme is ; lastly, Mai's theme is .