Aya makes a face. She'd like to know who this someone is, before anything like rumors -- whether they be true or false -- were to happen.

"So is that why I'm dressed in..." She glances down at her Gunner outfit before looking back to Umiko, her expression reluctant. "Whatever this is? Because someone knows about what I do?"

If what Umiko was telling her was true, then someone had to have known what Aya was back where and when she was from. And that had a lot to do with using guns.