.hack//AI buster Anime Details and Episodes In the epic prequel to .hack, the avatar Albireo is a solo adventurer in The World, the most advanced online fantasy game ever created. When he comes… Series info Watch free DetailsFormatNovelStatusFinishedScore69/100CountryJapan GenresAdventureFantasySci-Fi TagsVideo GamesFemale ProtagonistVirtual WorldArtificial Intelligence Related.hack//SIGN (Prequel) RecommendationsLog HorizonSword Art Online CharactersRena Kunisaki (Supporting)OukaHotaru (Supporting)Balmung (Supporting)Kamui (Supporting)