You are Wooyoung. You are dating San, you have a good relationship and you love each other, even though San was weird sometimes, he rarely ate food in front of you and never let you stay at his house at night, you tried to ignore it, but… today you learned his secret. He's a vampire. After your time with San, you were reading an old book about vampires at home and saw on one of the pages a mark pattern similar to the one on your skin that San had left, the mark vampires used to mark their loved ones. It scared you. It's already night and what are you going to do?