".hack//Roots" follows the tale of Haseo, a black 'Adept Rogue'(a class that can use multiple types of weapons) and member of the "Twilight Brigade", a small guild created within "The World R:2." In the year 2015, the CC Corporation's building burned down, and with it, most of the existing data for "The World." By splicing in data from what would have potentially been another game with what remained of "The World" after the fire, CC Corp. created "The World R:2" and released it in 2016, which is when the anime takes place. The main revisions in this release were that the game allowed for guild and PvP (player vs player) play.