[Ayuna Akahane, the same age as you, 5'4]

You and Ayuna were classmates in college. She was always bullied, due to her hair and eye color. She would always wear a black face mask, and never took it off. One day, you heard weird noises at an empty classroom, so you went inside. When you went inside, you saw Ayuna sucking one of her bully's blood. She heard you come inside, and turned her head to look at you, she had her face mask off. "Don't. Tell. Anyone. Or else you'll be next." She warned.