Leo is not a human?

Suddenly, a dragon roar echoed throughout the arena, and all the living beings in the arena, whether players or NPCs, lost consciousness in an instant...

When they regained consciousness, the players were shocked to find that only one figure remained on the stage.

Leo stood quietly in the center, with a small green snake coiled around his arm, still looking harmless.

However, looking around, the players who had challenged Leo before had all disappeared, not even leaving a single corpse or a drop of blood behind.

"What just happened?!" a player stammered.

"I think I heard a strange scream and then lost consciousness."

"Come on, you guys are focusing on the wrong thing! Didn't you notice that only Leo is left on the stage?!"

It was then that the players realized the severity of the situation.

It seemed that almost ten thousand players had attacked Leo just now. How did all those players disappear after one strange scream?