Voice de トウコウスフィア~Ar tonelico Supporter’s Disc~

Toukousphere is a section of the Ar tonelico series official web site where the game characters from said series answer to submitted questions from fans, as well as commenting on any fanwork (fanart) the fans send them. The casting of this album was determined based on a poll as follows;

出演者：クロア（CV:遊佐浩二）
オリカ（CV:宮崎羽衣）
サキ（CV:後藤麻衣）
フィンネル（CV:喜多村英梨）
ココナ（CV:志村由美）