For an anime series whose cast had originally thought that only one or two character-centered albums would be released aside from the original soundtrack, the number of songs grew over the course of several years, giving fans a wide variety of music to sing along to with their favorite characters. Sometimes accompanying these albums are small mini-dramas about the characters, until it reached the extent that the series had also begun to produce several drama CDs.

CD List
       - a page that contains a little bit of information about some of the series’s CDs.

Song List
       - a list of character and series songs and who sung them.