[His question gives her pause. Ai draws back slightly, placing her hands on her legs as she considers what kind of answer to give.]

Only when I was really little. But it wasn't one person's mind. I didn't have any control over my mind reading so I could hear voices all around me. Right now, I can't hear anything; there's a whisper here and there, but I barely notice them anymore.

[And then she points to her chest, in the area slightly below her collarbone.]

You can't see it, but there's a seal here. A magic user marked me so that I'm not at full power. I've always been running on half of it.