Survivors Guilt

In the year 2022 a revolutionary gaming technology was created. The Nervegear. It was the first device to fully optimize Full dive technology. The first game developed using this technology was Sword Art online or SAO but soon what was meant to be a game was turned into a death game. 10,000 players were stuck inside and unable to log out. If your HP hit zero you die both in the game and in the real world. It took two long years for the game to be cleared but over 4,000 people died. Many of the survivors are dealing with the trauma from the game.