.hack//G.U. Vol. 1//Rebirth (再誕) follows the story of the Adept Rogue Haseo in The World R:2, a powerful PKKer known as the "Terror of Death", hunting for a strange PKer known only as Tri-Edge who had placed his close friend Shino into a coma six months earlier.
.hack//G.U. Vol. 2//Reminisce (君想フ声) shows the players of The World to be increasingly endangered as the AIDA problem becomes more dangerous. Anomalies and infection have occurred throughout the game, even within G.U. itself.