That extra, is ME?

As "He" awakens, he discovers himself in a setting with strangers, with no ground beneath his feet and no sky above him. There, a great power told the populace about the catastrophe that had taken place and granted them the authority known as the "System". But, a mistake resulted in the addition of one more individual who was not intended to be there. Now, in a completely new world where everyone has this authority, what would he do? P.S. The cover is not mine, if the owner wants me to remove it just say it in the comments. Please read it to at least 30 chapters before dropping it. And as the story progresses, the pacing will also.