Awoken In modern times as a vampire ghost with a system

{system formation successful...booting up...finalizing currently built functions...Waking up dormant soul of user...} Once those words were said, someone that has been asleep for seemingly hundreds if not thousands of years, begins to awaken once again after being dead for long long time. (Note this novel will contain 18+ scenes in it once I get deeper into it, there will be stuff like; sexual things, torture, ect. so read at your own risk.)