Heart of Hearts / KOTOKO [ ErogesongFull 2001 ]

DOOP ADVANCE / MELL [ ErogesongFull 2003 ]

[KOTOKO] Feel in tears

TUNEE_MUSIC Electropop2 , soft analog synths, delicate female vocals, nostalgic stem+tunekoENG

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

KOTOKO - Undying Love

ソニックダイヴ / MELL [ ErogesongFull 2005 ]

I-DOLL / KOTOKO [ ErogesongFull 2002 ]

連鎖病棟 (Rensa Byoutou) 主題歌 - cover link (long version)

See You ~Chiisana Eien~ - KOTOKO & MELL

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

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

BALDR FORCE / KOTOKO [ ErogesongFull 2002 ]

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

PCgame PureHeart Full / 詩月カオリVer.

KOTOKO - flow ～水の生まれた場所～ / KOTOKO - flow ~ mizu no umareta basho ~

KOTOKO：Wing My Way

Snow Angel ~ KOTOKO

SlowStep 初めての恋愛 / Healing Leaf (島宮えい子&川田まみ) [ ErogesongFull 2004 ]

D.C.WhiteSeason / rino [ ErogesongFull 2002 ]

るな・シーズン / AKI [ ErogesongFull 2000 ]