Natsumi has done the following roles in anime.

D.C. II -Da Capo II- [2007]	Hanasaki Akane
ef -a tale of memories. [2007]	Shindou Chihiro
Grisaia no Kajitsu [2014]	Tachibana Chizuru
Grisaia no Rakuen [2015]	Tachibana Chizuru
Hanaukyou Maid Tai	Morino Yuki
Koihime Musou [2008]	Rikuson
Little Busters [2012]	Kamikita Komari
Ojousama Sousamou	Ryuuzaki Yoko
Sentimental Journey {Episode 4}	Ayaka
Taiho Shichauzo {TV Episode 5}	Katsui

Natsumi has done the following roles in games.

Doukyuusei [PC Engine]	Sakuragi Kyoko
Doukyuusei if [Sega Saturn]	Sakuragi Kyoko
Dragon Knight 4 [Playstation]	An'na
Dragon Knight 4 [Playstation]	Nereid
First Kiss Story [PC FX]	Orikura Kana
First Kiss Story [Playstation]	Orikura Kana
Hataraku Shoujo Tekipaki Working Love [PC-Engine, PC-FX]	Hikaru
Hooligan -Kimi no naka no yuuki- [PlayStation 2]	Amou Yuuki
Kyoufu Shinbun [PlayStation]	?
Lamune -Glass bin ni Uturu Umi- [Playstation 2]	?
Magicians Academy [PlayStation 2]	?
Meltylancer -Ginga Shoujo Keisatu 2086- [Sega Saturn]	Frauvell
Meltylancer [Playstation]	Frauvell
Natsuiro Celebration [WIN98]	Kyouno Yuunagi
Ojousama Express [Playstation, Sega Saturn]	Matsuura Ai
Ojousama Sousamou [PC FX]	Ryuuzaki Yoko
Sky Gunner [PlayStation 2]	Poulet
Soul Link Extension [PlayStation 2]	?
Toki no Kuni no Elfenreet [Windows]	Apricot
Valkyrie Profile [Playstation]	Nanami
Valkyrie Profile [Playstation]	Remia

Natsumi has done the following roles in audio drama.

Arashi no Destiny [CD] {Volume 2}	?
First Kiss Monogatari [CD]	?
Kouda Mariko no Radio Canvas Special [CD]	?
Kyuukyoku Parodius [CD]	Tako A
Sotsugyou Cross World All Stars On Stage [CD]	Ryuuzaki Youko
Twinbee Paradise [CD] {Ao to Hai Iro no Sora de}	child
Valkyrie Profile Voice Mix Arrange [CD]	Nanami