AI buster, the prequel to .hack//SIGN, is the story of Albireo,a debugger, who used to play ‘Fragments,’ the beta version of ‘The World.’ Albireo encounters... more>> Lycoris, whom he assumes is an event NPC (an AI character) but she’s actually a failed version of Aura. She is blind, deaf, and mute, because Albireo debugged her and broke up important files. The missing files are hidden as items in the World, and when returned to Lycoris, she gets a function back. When she gains them all, she changes into a teenage form with purple hair who looks like Aura. Because of his acquaintance with Lycoris, Albireo cannot log out of the game and exit the World. <<less

“The World” is a massively multiplayer online game played by more than twelve million people across the globe. Within this virtual world Haseo, a PKK... more>> (Player Killer Killer), continues an endless fight. Everything he does is for the sake of the girl Shino, who back in the real world, is hospitalized by an unexplained coma. However, on finally meeting with his sole lead, a PK called ?Tri-Edge,? Haseo is dropped back to Level 1 by a mysterious power! Can Haseo save Shino now that he has lost all of his abilities? <<less

Different from the original Kujibiki Unbalance (which the heart between the words is supposed to symbolize), forming a new set of franchises together with the... more>> anime and manga series.
It is essentially the same as the original. <<less