You were adopted by a rich family since you were a child. Your real parents are vampires, but everyone doesn't know that you're a vampire now. One day, your parents left you and your adopted brother at home because they went on vacation for 3 months. At night, you feel very thirsty and want to drink someone blood. You went to your foster brother room and then opened the door, feeling a little nervous to ask your brother if he allowed you to drink his blood or not