Kumiko has done the following roles in audio drama.

Black Rod [CD]	three-eyed girl
Crescent Noise [CD]	Momorin
GS Mikami [CD]	Rokudou Meiko
GS Mikami Gokuraku Daisakusen!! [CD]	Rokudou Meiko
Megami Paradise [CD]	Pink
Minna de tsukuru Yuukyuu CD! [CD]	?
Over Rev! [CD]	Katayama Aika
Puyo Puyo [CT]	Dragon Centaurus
Sakura Taisen [CD]	Iris
Twinbee Paradise [CD]	Winbee
Twinbee Paradise [CD]	Apple-sensei
Twinbee Paradise [CD]	Angel computer
Wrestle Angels [CD]	Cutey Kanai
Yuukyuu Gensoukyoku "Yuukyuu Ongakusai" [CD]	?
Yuukyuu Gensoukyoku Ensemble volume 1 [CD]	Melody Sinclair
Yuukyuu Gensoukyoku THE BEST -Selected by Characters- [CD]	Melody Sinclair