[frubam]

Originally Posted by zeniselv

Spoiler for also the whole yui thing...:

screamed .hack//'s aura, it even appears she is an AI.

Lol, I thought the same thing . I'm surprised no one mentioned it besides you til now =03. Now just wait for the moment she bestows upon them abilities that break the game. Another instant thought was

Spoiler for spec about Yui:

was that she was Kayaba's(creator's?) daughter, which is why she isn't considered an NPC or player.