[ There sure is! A couple of books he's snagged temporarily from the library.

He's laughing a little to himself as he makes a duck for cover. ]

I'm not sorry for saying that.

[ His expression is at least evidently much less tense now, but with the way the books had flown made him think about something... ]

...You know this horsing around reminds me of something. Last week when you punched me in the arm, you seemed much stronger than usual. Were you...?

[ He trails off, leaving the answer up to Natsuno for that. ]