 In the original three games, The themes, where appropriate, are used in instrumental form as a leitmotif for each of the main female leads, and a remixed instrumental form is used as the menu theme for all four games.The lyrics, composer, and vocals of the theme songs were written by the Japanese pop rock band, Funta (Under the name of U), with the help of the anime J-pop company, GWAVE.Kuru Kuru Lovely Day was released as an audio CD as part of the promotional materials for Episode 3.