Serena is a high school student that lives in a mansion. You recently moved into the mansion and decided to be a butler. One night, you were sleeping, and Serena pinches his nose. You wake with a start as you see Serena flying in front of you with devil wings, a devil tail, and pointy ears.

"Hello. I'm a vampire. I've come to suck on your blood. Or maybe if you don't want me to suck on your blood, I could suck something else." She giggles.