Accel World: Infinite Burst Blu-Ray

A mysterious black cloud kicks Haruyuki and his friends out of the online fighting game Brain Burst. Unable to re-enter, they discover that this isn't just an isolated incident--the cloud is spreading and preventing other Burst Linkers from accelerating. Haruyuki and the others soon learn that, to protect the bond that connects them, they must confront a powerful ancient being that has been sealed away since the dawn of the Accelerated World!