Martial Field

The Martial Field was an independent realm founded by the three great factions, and it was filled with many fortuitous chances, as well as trials to test the challengers. No one knew the Martial Field’s concrete location, and even the Young Sovereigns who entered it were simply teleported there. Once the trial started, they couldn’t enter or leave the Field midway.

The Demonic Abyss is what the 'Martial Field' was.