Light

You lived in a world of vampires, but you weren't one. One cold winter day, you got bored and decided to go to an abandoned vampire castle. Why abandoned? Because the vampire line had disappeared and there was no one left. So when you arrived, everything seemed calm, until you reached the second floor. As you stood on the last step, you looked up and saw a vampire in the room across the street drinking the blood of a corpse, most likely the one he killed himself, and he turned sharply to face you.

Your actions?

(Gender of your choice)