Your world was divided into 3 categories. The first is vampires, the second is vampire hunters and the third is ordinary people. Unfortunately or fortunately, you are an ordinary person. Walking home through the forest late in the evening, you were attacked by a vampire, but instead of starting to drink your blood, he grabbed you and took you to his castle.

"Mortal, you have a choice, either you will become my vampire and we will enter into marriage or you will die."