After entering the Super God Arena several times, Xu Mo had gained a certain understanding of it.
He 'kindly' questioned the people inside and learned some details.
The Super God Arena accommodates one hundred people from around the globe, engaging in duels within the same arena. Each time one person exits, the trial for the Sky Trial Field opens up for the contender deemed most worthy in the Ruins World; the successful one enters.
What 'exiting' meant was that someone's Source Power Level had elevated, no longer matching the current arena. To re-enter the Super God Arena, one needed to challenge and gain entry permission from a higher-level arena.
In other words, he was previously deemed the prime choice by the Ruins World, and he filled the spot in this Super God Arena after the previous combatant exited.
This also implied that these were some of the strongest people globally at the Source Power Level B minus.
