Demon Emperor Xue Tian.
Three hundred years ago, he was unquestionably a figure in the limelight.
During the righteous and demonic battle three hundred years ago, if it weren't for Demon Emperor Xue Tian, the demonic path would probably not even have the qualification to hide in the Netherworld Ghost Domain. It would have been destroyed by the righteous path three hundred years ago.
In that battle three hundred years ago, Demon Emperor Xue Tian fought against several powerful figures from the righteous path single-handedly. Although he was ultimately defeated, it was a glorious defeat.
Of course, after that battle, Demon Emperor Xue Tian led the demonic sect members to retreat into the Netherworld Ghost Domain, securely defending it.