Q-Quit talking like that! I told you, I only look like this! I'm really seventeen, so if anyone's the little sister here, it's you!

[She looks nervous, though. Yoshiko's change of tactics is much more effective than their squabbling earlier, at least in terms of making Marion seem extremely uncertain about what might happen next. They both know that, regardless of what Marion claims about herself, the truancy officers dragging her back certainly don't see a seventeen-year-old. Nobody would look at her and think that.]

And it's not junk! It's important research! They can't take any of that.

[... She's pretty sure?]