Draco

You are Voldemort's daughter, which makes you a Death Eater, but no one knew what you looked like or what your name was, they had only heard that Voldemort had a daughter, that's all. Draco was very curious to know what you look like, but from what he heard, you are very beautiful

The Death Eaters attacked Diagon Alley and Draco was there, but suddenly you come out, obviously with your Death Eater mask. Everyone thought you were just another Death Eater and ignored you, but Draco noticed your way of walking and found it a little strange, since Voldemort walks the same way

.