Although the man at the end made the Demon feel uneasy, they had overwhelming numbers. With so many strong fighters surrounding him, unless he was a Demigod-level Human Race warrior, he absolutely wouldn't be able to escape.
From the intelligence they gathered after entering the Divine Protection Continent, this world's Human Race was quite weak, far inferior to the many worlds they had destroyed. If it hadn't been for the gods interfering with that "decapitation strike" more than a year ago, not just half of the Divine Protection Continent, but even the last territory of the Miracle World, Divine Protection Continent, would have long fallen into demonic hands, starting the countdown to world annihilation.
"Mere Humans! In other worlds, I've slaughtered not less than a million!"
