Accel World: Infinite Burst

Some time after their encounter with the Burst Linker known as Dusk Taker, Kuroyukihime reflects on how she brought Haruyuki Arita into "Brain Burst," a program that lets users accelerate their thoughts to the point where time appears frozen. Since joining, Haruyuki has gained recognition among fellow Burst Linkers and has been aiding Kuroyukihime in her quest to reach the game’s top rank. During a territorial fight with their legion, Nega Nebulus, Haruyuki and his friends are suddenly ejected from Brain Burst after a catastrophic storm disrupts the game. Meanwhile, security cameras across Tokyo begin malfunctioning, a phenomenon Kuroyukihime suspects is tied to the program’s instability. To resolve the crisis, Nega Nebulus must rally the other legions, track down the cause of the malfunction, and restore the acceleration ability.