2010 - 3 tracks

Renka Tairan - Masami Okui

2007 - 3 tracks

Insanity - Masami Okui

2001 - 4 tracks

Sora ni Kakeru Hashi - Masami Okui

2000 - 2 tracks

Cutie - Masami Okui

1999 - 2 tracks

Only One, No.1 - Masami Okui

1996 - 4 tracks

Give A Reason - Masami Okui

1995 - 4 tracks

Get Along - Masami Okui

2010 - 4 tracks

Ray Of Light - Shoko Nakagawa

2003 - 12 tracks

Masami Kobushi - Masami Okui

2007 - 4 tracks

Shichiten Hakki Shijou Shugi! - Kotoko

2006 - 4 tracks

Face of Fact (Resolution ver) - Kotoko

2003 - 4 tracks

Second Flight - Kotoko