Twilight Ember: the Prisoner of the Palm of the Blood Emperor

He is a vampire monarch who has lived for three hundred years, a cold-blooded emperor who is used to betrayal in life and death. She is a business pearl reborn from the ashes, and a fearless edge who dares to face the darkness. An interception on a rainy night and a USB flash drive hiding a secret completely bound the fate of the two. He raised his hand to hold up the sky for her, silencing all those who coveted it. She turned around and strategized for him, completely turning the dark tide of the vampire clan into a smooth path. "You are the one I protect." "I am your strongest trump card."