Oh.

Now that sure is an awkward question, and the fact that it is can basically be read off Madoka's face the moment Naoya asks her that. She isn't the type who can quickly mask such a reaction - it's already out there in the world before Madoka can do a thing about it.

So she breaks eye contact with him, staring down at her shoes shamefully.

"Um..."

Even as she's hesitating, it seems to take Madoka several moments to find an answer. She's probably wondering whether to tell him the truth or not. She doesn't really want to, since it's sad, but on the other hand.. she doesn't think she can lie in a way that's convincing enough that an adult like Naoya won't look right through it.

"I think.. I.. um, I won't really get to do anything when I'm older.."