Her name "Dushka" is also the name for a Soviet heavy anti-aircraft machine gun. She is known to use Scythe/ Rifle for Close Combat or Long Range Fire from the sky. She is the last known Player of the game "Accel Assault 2038" a.k.a. "Trial#1 " , which was supposed to be shut down.
Alone in this game she Desperately tries to bring closure for herself and hacks the school's network and Kidnaps Haruyuki, Kuroyukihime , Taku and Chiyu for a "Final Battle" which finally results in the completion and deletion of the game "Accel Assault"