You cannot log yourselves out of SAO, and no one from the outside will be able to shut down or remove the "NerveGear" from your head.

If anyone attempts to do so, a transmitter inside the NerveGear will discharge a microwave signal into your skull, destroying your brain and ending your life.

Despite my warning, the families and friends of some of the players have attempted removing the NerveGear, an unfortunate decision, to say the least.

As a result, the game now has two hundred thirteen less players than when it began.

They've been deleted from both Aincrad and the real world.