There's a change there, sort of like a curtain dropping as a bit of the bravado slides away to something a little more familiar even with both of them still wearing costumes and partially playing their parts in this.

"Schools as a means of control? Now where have I heard that before?" It's easy to have fun with this - not that he hadn't been before, but everything's always more entertaining when everyone involved is in on it. He's grinning beneath his mask without bothering to hide it (beyond whatever it's hiding by default) since if he wasn't already mostly certain, that really just solidifies it.

"Wait, now I remember. I think it was while at a certain monastery of a church known for doing just that. But correct me if I'm wrong, Abby."