The Case Study of Vanitas (Vanitas x Reader)

You have enough of this....
Ever since you found out the secret, you can't stand any vampires to have they're way by taking your freedom.
Ruki Mukami decided to lock you up in a secret room while he has gone insane. The whole entire aristocrat's of the sons of Karlheinz plan on using your power to unlock whoever becomes Adam.
But they can never since you try to stand strong but snapped.

You almost lost your light until a stranger lend a hand and all of a sudden you have the opportunity to have your freedom back. And all of a sudden your adventure has just began by the name Vanitas.
A normal human who is a vampire doctor helping vampires.

But what will happen when you both meet?

After all.....you are a Dragon-Phoenix of Light chosen by the Gods and Goddess.....