Am I? [Touma scratched his cheek a moment.] Except for that one time, I wouldn't know.
I somehow doubt that Acumen sees things the way people might. The world can't be that black-and-white, right?
I... don't know the spell's details. If it even is a spell. The doctor said it was like my brain cells were vaporized -- but just the ones in certain parts of my brain. As far as he could tell, there was no way to physically recover them. [He looked rather disappointed about that.]
[Nodding.] It's mostly in the color of your hair and eyes, and even your dress is light. [The latter is mostly incidental, though... not that he's looking.] If I didn't know better -- and I'm only saying that because I'm trusting that you'd stop me if I was right -- I'd say you could be her mom, or at least older sister.