 The visual novel's one main piece of theme music is the ending theme "Kagayaku Kisetsu e" (輝く季節へ) composed by Shinji Orito. Five of the heroines have background music leitmotifs, excluding Mayu Shiina. Mizuka Nagamori's theme is "Happiki no Neko" (8匹のネコ, Eight Cats); Rumi Nanase's theme is "Otome Kibō" (乙女希望, Maiden's Wish); Misaki Kawana's theme is "Mitame wa Ojō-sama" (見た目はお嬢様, Ladylike Appearance); Mio Kouzuki's theme is "Mujaki ni Egao" (無邪気に笑顔, Innocent Smile); lastly, Akane Satomura's theme is "Niji o Mita Shōkei" (虹をみた小径, Path of a Rainbow Sighting). The first original soundtrack for the game was released on December 6, 1998, and a second followed on September 24, 1999 as a piano arrange album. A remix album titled Sea Roars came bundled with the full voice Windows edition of the game released on January 1, 2003.
