that has been released from Crypton Future Media, headquartered in Sapporo (DTM) for vocal sound source, and is its character. In vocal sound source corresponding to the Yamaha of the developed speech synthesis system "VOCALOID", it is possible to create a vocal part and back chorus by synthesized speech by the input of the melody and lyrics. Further, female virtual idol character from the viewpoint of increasing the reality more voice giving the body is set to voice.