Masumi has done the following roles in audio drama.

G-On Riders [CD]	Fancy Juu
Gyarukan (Gal's Company) [CD]	Maeshima Kaori
Hayate no Gotoku! [CD]	Asakaze Risa
Kira Kira Melody Gakuen [radio, CD] {drama 2, 5}	Makimura Midori
Raki Suta [CD]	Kuroi Nanako
Taishou Yakyuu Musume. Otometachi no Hiking [CD]	Ishigaki Tamaki