Because they were not transported 500 years ago.
Those who died during the death game reappeared after Shin ended the death game at seemingly random time periods. You seem to have failed to recall the fundamental premises of this story.
See the Fortress Arc with the reunion with Hibineko and the married couple players.
can you please explain how if all players were transported to the new world 500 years ago except shin how is hilamee only 148 years old?
Because they were not transported 500 years ago.
Those who died during the death game reappeared after Shin ended the death game at seemingly random time periods. You seem to have failed to recall the fundamental premises of this story.
See the Fortress Arc with the reunion with Hibineko and the married couple players.