Both White Tiger and Vermilion Bird had personally experienced that great battle between the Netherworld and the kingdom of Hell, and although they had not seen the true form of the Fengdu Emperor, they were all too familiar with his aura.
Authority tokens could be forged, handwriting could be imitated, but the sublime aura belonging to the source of the Netherworld on the token could not be faked in any way.
Though they seemed glorious as two of the Mount Luofeng 6 Hell Deities, their actual strength was insignificant in the entire Netherworld, and their current status was completely due to the divine enthronement granted by the Fengdu Emperor.
Moreover, knowing the divine might of the Fengdu Emperor, both White Tiger and Vermilion Bird were his most loyal supporters.
Even if the authority token in front of them revealed no supernatural properties, it still made them instinctively feel reverence and respect.