[ He has to be... unusual. Unless her magic here isn't working, but she'd still been in her Magical Girl guise until she'd changed back herself. And the few people who had walked by had taken no notice of her, so Sana's brow also furrows, and she finally answers him in the world's smallest voice. ]

I was... with my friends. W-we were investigating something strange... but then the next moment, I was here, by myself.