2004 - 13 tracks

Hane - Kotoko

2003 - 4 tracks

Second Flight - Kotoko

2003 - 6 tracks

Princess Bride Arrange Album DISC 2 -Vocal Part- - Kotoko

2002 - 4 tracks

Shooting Star - Kotoko

2001 - 11 tracks

MottoLOVEChu! Doukon CD - Kotoko

2001 - 6 tracks

Hitorigoto - Kotoko

2001 - 4 tracks

Suiso ~1-2 no Kiseki~ SOFMAP ORIGINAL EXTRA CD - Kotoko

2000 - 11 tracks

Sora wo tobetara - Kotoko