Haseo, a newbie to the popular Online Game The World, goes through many things with the members of the Twilight Brigade Guild.

In 2015, CC Corporation's database's caught on fire destroying The World. However, by using data that would have been used on another project, CC Corp. was able to rebuild the game. In 2016, The World R:2 was released. .hack//Roots takes place after the events in Legend of the Twilight Bracelet, and before the events in .hack//GU.