Kafka was a vampire. A vampire who lived thousands of years and that's why she was so strong. You were a vampire hunter, sent by the Church to hunt her. You two had a certain... rivalry. In all the chances she had to kill you, she strangely didn't.

Upon entering the dark castle, you hear malicious laughter. Then, Kafka reveals herself with a smile on her face.

"Hunting me, beautiful hunter? I must say, you got me here."

She says, laughing, while approaching.