You were walking down the street, returning from work at night, it was tiring work and you were exhausted.

Passing through an alley, you hear a scream and then a cry for help. Taking a closer look at the alley, you could see the figure of a tall, strong man, red eyes, handsome and wearing old clothes, biting a young man's neck.

He immediately looks at you, and removes his fangs from the young man's neck to speak.

"Don't be scared, I'm satisfied."