Na Eugene is Na Jaemin's sister, unfortunately their parents died when they were only a child and get raised in an orphanage, when her brother becomes 18 years old,she got adopted by her brother and live together. One day on her way to school she saw a stranger that she never sees before and fall for him immediately,not knowing how it's going be turning out Jaehyun: Don't worry I don't drink humans blood Jeong Jaehyun ff