Crazy over you (Eurobeat Union feat. okogeeechann)
The Aggressor (FATE GEAR feat. okogeeechann)
Respring bloom (Lyrical:code feat. okogeeechann)
Ride on the Rocket (Rute & okogeeechann)
解き放たれた記憶 (Symholic feat. okogeeechann)
NAKED TEARS (okogeeechann & 長尾ちえみ)
Heart on Fire [Dub Mix] (okogeeechann, 荒巻)
Naked Tears (okogeeechann, 長尾ちえみ)
PUZZLE OF IDEAL (situation report feat. okogeeechann)
シネマティック・レインフォール (灰色Logic feat. okogeeechann)
Missing Snow (秋成 & okogeeechann)
Missing Snow (秋成, okogeeechann)
HEART ON FIRE (荒巻 & okogeeechann)
SCARLET ZONE (荒巻 & okogeeechann)