Heart of Hearts / KOTOKO [ ErogesongFull 2001 ]

DOOP ADVANCE / MELL [ ErogesongFull 2003 ]

[KOTOKO] Feel in tears

お姫さまだっこ～天使にオシオキ～ / KOTOKO [ ErogesongFull 2001 ]

I-DOLL / KOTOKO [ ErogesongFull 2002 ]

ソニックダイヴ / MELL [ ErogesongFull 2005 ]

PILE・DRIVER / R.I.E [ ErogesongFull 1999 ]

KOTOKO：Wing My Way

ALMA ～ずっとそばに...～ / KOTOKO [ ErogesongFull 2003 ]

BALDR FORCE / KOTOKO [ ErogesongFull 2002 ]

ソニック プリンセス / MOMO [ ErogesongFull 2001 ]

Ribbon2 / AKI [ ErogesongFull 1999 ]

Chanter -キミの歌がとどいたら- / KOTOKO [ ErogesongFull 2006 ]

みずいろ / 佐藤裕美 [ ErogesongFull 2001 ]

Railway ～ここにある夢～ / KOTOKO TO AKI [ ErogesongFull 2001 ]

金曜日の仔猫 / 詩月カオリ [ ErogesongFull 2003 ]

KOTOKO - Undying Love

Snow Angel ~ KOTOKO

D.C.WhiteSeason / rino [ ErogesongFull 2002 ]

[KOTOKO] Wing my Way

るな・シーズン / AKI [ ErogesongFull 2000 ]