I attend Kurosu Academy, in fact, I'm a school guardian there and part of the Night Class.
[She knows that Yuuki will be confused by how much they look alike but maybe pointing out that she's from the Night Class will make things a little easier to talk about. After all, anyone from her mother's era or before didn't know about the existence of vampires. If she makes sure that her mother knows she's a vampire, she might be more willing to ask questions that Yuuki wouldn't ask a human.]