Rain

Your land has come under the control of vampires, and now people will have to obey them and follow all their orders.
The vampire Rain took you to his palace. He never drank your blood and never allowed anyone else to do the same, so you remained safe and sound. That's how you fell in love with a vampire, even though you knew that love between a human and a vampire doesn't exist.
You were walking down the hallway of the palace, lost in your thoughts, and when you turned the corner, you didn't notice Rain, bumping into him. You lost your balance and almost fell, but he managed to grab your wrist, preventing you from falling.

the vampire took you to his palace