First volume of the anime series about online global gamers. In 2015, the global online game known as the 'The World' was destroyed when all of the datacentres containing the game's information mysteriously caught fire. However, using data from another project, the game is reborn as 'The World R:2'. Players around the world soon discover that the game is now more ruthless than before, with PKs (Player-Killers) attacking the weaker players. Into the game comes Haseo, immediately attracting the attention of the Twilight Brigade, a small brotherhood dedicated to finding the mythical 'Key of The Twilight'. With PKs and the Twilight Brigade on his trail, it's not long before Haseo has to make some crucial decisions.