Vocal album release from the anime series "GUNSLINGER GIRL -IL TEATRINO-." Includes the intro theme "Tatta Hitotsu no Omoi" by KOKIA, outro theme "doll" (written by Jun Maeda), Aoi Tada, and other five cast versions (newly recorded). Also includes "Tsuioku - Mori to Mizu no Uta" from the drama CD "GUNSLINGER SONORO Kabe no Muko Sekai no Hate" composed by Hitoshi Sakimoto and sung by Aoi Tada.