Thread:Dim1/@comment-7928196-20130603212330/@comment-1173941-20130603220040

err, actually, the Light Novel says that she was created by Argus, but an unexpected instruction came from Cardinal, that she would not interact with the players (because of Kayaba's plans)

"...When the developers of Cardinal entrusted even the care of players to the system, they ran a trial of a certain program. Using a feature unique to the Nerve Gear, it monitored the emotions of players in detail, and appeared at the side of players found to have problems to hear them out... «Mental Health — Counselling Program», MHCP version 1, codename, «Yui». That would be me." "Although I am unaware of the complete details of what exactly happened as well, Cardinal handed down an unplanned order to me. A complete prohibition from interfering with all players... Unpermitted to come into any tangible contact with them, I reluctantly continued with nothing but the monitoring of the condition of the players' mental health." I doubt Kayaba would really create Yui, seeing as she's kinda a threat to his plan...

And like Gsimenas said... He created the software package, that allowed people to create their own Fulldive game... He probably has a Seed account, but the only reason he was a GM in ALO, was because Sugou is terrible at everything, and never removed the code that gave Kayaba absolute control...

Everyone who steals game code knows to replace all instances of administrative accounts with your own...