.Hack//SIGN
Complete Collection: Box 1

The online game, known as The World attracts millions of players from all around the globe, who spend their spare hours or even whole days immersed in it. However one event will shake the entire game to its very core: Tsukasa, a player, shows signs of being unable to disconnect from The World and displays unusual abilities that may unfairly tip the scales of power in the game.

Some players, intrigued by the person who can make the impossible possible, will try to help him. However the more Tsukasa's friends search, the more it seems like The World is wrapped in mysteries that lack answers. It becomes more and more likely that Tsukasa's situation is somehow linked to the legendary item the Key of the Twilight - Will Tsukasa one day be able to return to the real world?