.hack Infection PS2 American version. Super rare hard to come by game now a days. In . hack//Infection, Kite's friend Orca invites him to play The World. In the first dungeon they visit, they encounter a girl in white, Aura, being chased by a humanoid monster. Aura tries to entrust Orca with an item called "the Book of Twilight", but the monster attacks him, crashing The World's servers.