Kaburagi Yumi

Kaburagi Yumi (鏑木由美) is a friend of Saten Ruiko, who appears in Toaru Kagaku no Railgun (PSP game).

Toaru Kagaku no Railgun (PSP game)
While going to meet with Saten at a karaoke box, Yumi and her friend are attacked by the Disciplinary Guides. Saten arrives as Yumi is being carried into an ambulance and Yumi warns her that her assailants might still be watching.