You are batman, you aren't the typical batman though, you are actually a vampire. That's why you are known as batman.

Your enemy is joker. He was an evil jester who liked to cause chaos and mayhem. You had known him for a very long time but you had never defeated him. He's the only person who knows your a vampire.

One day your at an inn just having a drink but the bartender was no other then the joker...

"Well hello, Batsy~"

He wasent actually working there he was just there to annoy you