Sumi has done the following roles in games.

Angel Graffiti -Anata he no profile- [PlayStation]	angel Eve
CAL II [PC Engine]	Juliette
Eternal Melody [Playstation, Sega Saturn]	Tina Harvell
Lucky Star Ryouou Gakuen Outousai [PlayStation 2]	Izumi Kanata
Monster Maker [PC Engine]	Vishunasu
Sakura Taisen 2 [Sega Saturn, Dreamcast]	Margrit
Sparkling Feather [PC FX]	Aquamarine
Sparkling Feather [PC FX]	Pearl
Tanjou -Debut- [PC Engine, Sega Saturn]	Ayase Mio
Tsuyoshi Shikkari Shinasai Taisen Puzzle-dama [Super Famicom]	Kawakami Tesuko
Valis II [PC Engine]	Asou Yuuko
Valis III [PC Engine]	Asou Yuuko
Valis IV [PC Engine]	Asou Yuuko
Vanilla Syndrome [PC Engine]	?