Make a vampire fall in love with me

In this world, there is not just man, God, & Satan; not just earth, heaven, or hell.

There is also a large space - it is the kingdom of vampires.

The vampire's depravity is so great that not even God can redeem it.



He is the ruler of the whole kingdom, but she is just an ordinary human with a pitiful life.



Because of an ancient book, she is forced to sign a contract from which there is no turning back - to make him fall in love with her.